Coffee Plant Diseases

Here is the most of Coffee Plant Diseases that attack on the crop.

1. Leaf rust disease (HV Disease )

Primarily affects arabica coffee in the lowlands, is caused by a fungus Hemileia vastatrix.
Symptoms: pale yellow spots on leaves that turn dark yellow and covered with powdery spores, especially on the lower leaf surface. The longer the spots enlarge and coalesce, and then dried. In severe attacks around the tree looks yellowish, then the leaves fall, and dead trees.

Control: Plants attacked badly sprayed with Anvil 6650 EC, 250 EC and Benlate Beyleton, then cut down and burned. For prevention, spray plants with fungicides at each ahead of the rainy season, once in three weeks.

2. Upas fungus diseases :

Upas diseases is caused by the salmonicolor fungus , mainly in the humid parts of plants such as the lower branches and twigs.

Symptoms: There is a thin fibrous millennium like a spider’s web, then form a millennium and turned into a reddish nodule. The attacks continued  cause plants to dry, the leaves wilt and hang on the branches.

Control: Reduce humidity by reducing shade; trunk or branch of the pain is still small in size (diameter <1 cm) was cut 10 cm below the base of the part. Pieces of diseased stems and branches are collected and then burned. Stem or branch that pain is quite large in size, if the attack is still early, the pain is quite smeared with fungicides or Copper Sandoz RM Calixin 0.4% formulation or basting fungicide Bordeaux, or porridge Carnolineum 5%. If the attacks had continued, the stem or branch of a sick cut, the rest of the cut branch or stem and branches around RM Calixin smeared with fungicides or Copper Sandoz or basting fungicide or Bordeaux, or porridge Carnolineum 5% in the affected areas.

3.   Black  and Chocolate root disease

Black root disease caused by fungus Rosellina bunodes and R. arcuata, while the brown root disease caused by fungus Fomes.

Symptoms: black root color  and root brown: yellowing leaves, wilting, and hang up, then fall and finally the plant dies.

Control of black root disease and root brown: Unloading coffee tree to its roots and burned; Give 200 g of flour of sulfur in the former pit demolition is inserted into the ground, then stirred and the hole should not be planted for one year; Improve drainage so that water is not stagnant; Isolation of plant affected by making a trench as deep as 1 m around the plant area affected.

4. Brown leaf spots

Brown leaf spot diseases is caused by the fungus Cercospora cafeicola Berk et Cooke.

Symptoms: There is a circular brown spots on leaves, white in the middle and red at the edges. When attacking the fruit, the fruit is black, wrinkled, fall out prematurely. Fruit skin hardens.

Control: reduce the moisture by reducing shade garden, pruning the coffee plants that are not productive, thinning seedlings, improve drainage, cut and burn the affected plants. Chemically spray with fungicide Benlate, Benlate WP T20/20 and Dithane M-45 80 WP, 50 WP 0.2% Bavistin, Cupravit OB 21 0.35%, 0.2% Delsene MX 200 as recommended formulation.

5. Dead End Disease

Coffee diseases are caused by the fungus Rhizoctonia.Symptoms: Leaves on affected branches will turn yellow and fall, then branch off starting from the end.

Control: Prune affected branches (pruning done on the branch that is still healthy), then the clipping burned or buried; Spray the entire plant with a fungicide.

6. Black spots  diseases

This diseases are caused by a fungus Cephaleuros Coffea.
Symptoms: The skin of fruit is not ripe dark patches arise which then extends to the entire leaf and skin of the fruit dry and black. Patches then grow hair on the edges there are grains of fine red spores.

Control: Spray with a fungicide when the leaf and fruit in the garden is still very young, but when the fruit should be picked just old and then boiled for processed dry, and burn the infected fruit.

Coffee Plant Pest

North Tapanuli Indonesia is one area that has potential for agricultural development coffee plant since 18 Century age. This area are export this quality coffee product to Europe since this century that mentioned.
But with time running the current production of coffee plants in there decreased one reason is because of pests and diseases.
Therefore, through this article BP4K North Tapanuli try to give the introduction of coffee pests and plant diseases and control.

1. Nematode Parasites

This is parasitic nematodes on coffee plant when at seedling stage. Pratylenchus coffeae and Radopholus similis is an endoparasitic nematodes are sedentary. P.coffeae life cycle of about 45 days and R.similis about 1 month.Symptoms:
Coffee plants are attacked appear stunted, leaves turn yellow and fall. Growth stunted primary branches so that only produce a little flower, flower prematurely and many are empty. Parts of the roots of the fibers rot, brown or black. In severe attacks the plants eventually die.
Control:
Control in the nursery: It is recommended to use chemical means is the fumigate fumigant media using pre-seed crops, such as Basamid Vapam G and L. For systemic and contact nematisida al: Curaterr 3G, Vydate 100 U.S., 10G and Rugby 10G.Vydate Rhocap applied by sprayed on the seedlings with a concentration of 1.0% and a dose of 250 ml / seedling.

Control in a plantation: The use of parasitic nematode resistant varieties of coffee. Used as rootstock for example coffee ekselsa (Coffeae exelsa), 121.09 BGN clones of robusta coffee clones and 961 BP. Way of technical culture: opening the planting hole, making crop rotation and barrier trenches.

Biological control: In order to suppress nematode populations using natural enemies in the form of bacterial, fungal and nematode predators.

Chemical control: Several systemic and contact nematisida suggested al Carbofuran (Curaterr 3G-35 g / plant), oksamil (Vydate U.S. 100 1.0% 1 – 2.5 l / plant) and etoprofos (Rhocap 10G – 25 g / plant). Application was repeated every three months.

2. Borer on Coffee Fruit

Adult insect borers in fruit or powdered coffee cherries (BBK), Hypothenemus hampei (Coleoptera, Scolytidae) brownish-black, female length about 2 mm and a male 1.3 mm. Eggs are laid in the coffee fruit seeds begin to harden, the age-stage eggs 5-9 days. Long larval stage 10-26 days, pre pupa 2 days and pupal stage 4-9 days. Developmental period from egg to adulthood 25-35 days. Old female insects live on average 156 days and a maximum of 103 days the male insect.

Symptoms:
BBK insects get into the coffee fruit by making a hole in the disc. The attack on the young fruit causing the fruit fall, assault on a fairly old fruit causes the coffee beans with holes and defects of low quality.

Control:
Control of the technical culture: Breaking the cycle of life BBK, including measures: Pick powder, which started the harvest by picking all the ripe Remove the affected powder of 15-30 days before harvest.

The collection of the coffee fruit that fell on good ground to develop the fruit and the fruit does not develop, then the fruit is also soaked in hot water. Racutan / loot, which is picking all the fruit on the tree at the end of harvest. All fruit picked powders,  and hot water 5 minutes. Setting shade to avoid planting too dark conditions suitable for the development of BBK.
Biological control: Using Cephalonomia stephanoderis parasitoids and fungal pathogens (Beauveria bassiana). B.bassiana application is recommended at a dose of 2.5 kg per hectare solid culture for three applications per crop season.

Vertebrate Pest on Tomato

Vertebrae pest have less impact on tomators that on many crops, but some species may require management or at least vigilance. Voles or (meadow mice) can be a significant problem in tomatoes;they cause damage in the filed and , more importantly, they frequently are pickup mechanical harvester, resulting in serious contaminant problems at processing plant. Birtd, especially horned larks, can reduce stand of direct seeded tomatoes by feeding on your seedling. Rabbits, jackrabbits and ground squirrels are occasional pest in some areas.

The key to managing vertebrae pest is to anticipate problems and to lay out strategy in advance to deal with them. The first step is to survey the land surrounding the filed; few vertebrae pest live year –round  in plowed fields. Most rodent and rabbit infestations begin in nearby crops , pastures aor natural habits, or in weedy febcerows or databanks.

Some vertebrae that damages crops are protected by law and you may need to get special permits before you control them. It is important to identify vertebrates correctly in order to choose suitable control measures and to avoid killing protected species. As you rlocal agricultural commissioner , farm advisor or  an experienced pest control advisor for help in identifying pest species if you are not certain

Pison baits are part of management strategy for certain vertebrate pest. Only permitted number of bait materials currently are available for control of field rodents. These materials fall into two categories : acute poisons that require a single feeding to kill the target pest, and anticoagulant poison that require multiple feeding over several days to kill the target pest. Acute poison baits generally are less expensive than coagulant;however , animals that receive a sub lethal dose ay become nait shy, making any follow –up treatment less effective unless sufficient time passed before the follow-up. Anticoagulant poisons that require multiple feedings are more expensive to use because more bait is needed, but they do not produce bait shyness. If used according to labels directions , hazards to domestic animals and non target wildlife are minimal for both types of baits

Pests and Diseases on Cultivation of Strawberry

The strawberry plant is an perennial that produces sexually from seed and vegetative  by sending out stems called stolon or runner. Reproduction from seed is uses in breeding new strawberry cultivars, where   vegetative reproduction is used to produce the plants used in commercial agriculture and gardening.

On Strawberry cultivation you can have the problem about pest and diseases. Many pest and diseases  attack  the strawberry when on nursery until the harvest.

Pest
1. Aphids (Chaetosiphon fragaefolii)

• This is the ticks yellow-reddish yellow, small (1-2 mm), live clustered in the lower surface of leaves. This have the symptoms: shoots / leaves wrinkles, curls, the formation of flower / fruit inhibited. You can controlling this pest by Insecticide Fastac 15 EC and Confidor 200 LC.

2. Mites (Tetranychus sp. And Tarsonemus sp.)

• Mites are small, oval-shaped females, males somewhat triangular shaped and reddish eggs. The symptoms: leaves mottled yellow to brown, curly, dry up and fall. Please to control: Insecticide-EC Committee of 570, Mitac 200 EC or 18 EC Agrimec.

3. Flower weevil (Anthonomus rubi), root weevil (Otiorhynchus rugosostriatus) and stem weevil (O. sulcatus).
The strawberry plant be attacked this pest can looks the symptoms: in the plants that are bored flour. To control: the insecticide Decis 2.5 EC, 400 EC or Curacron Perfekthion 500 EC at the time prior to the flowering phase.
4. White lice (Pseudococcus sp.)
Symptoms if this strawberry plant attacked by this pest is  the plant is covered with white lice will become abnormal. To Control this pest please use Perfekthion chemical insecticide 400 EC or Decis 2.5 EC.
5. Nematode (Aphelenchoides fragariae or A. ritzemabosi)
This pest is Living at the base of the plant shoots even up. The Symptoms are plants grow stunted, thin petiole and less hairy. You can control  with nematisida Trimaton U.S. 370, Rugby 10 G or 10 G Nemacur
Disease

1. Gray mold (Botrytis cinerea)
Symptoms of this diseases on strwaberry are the fruit rot and brown and dry. You can control with fungicide Benlate or Grosid 50 SD.
2. Ripe fruit rot (Colletotrichum fragariae Brooks)
The Symptoms  wet cook a light brown and the fruit filled with pink spore masses.Control this with a copper fungicide such as Kocide with active AS 80, Funguran 82 WP, Cupravit OB 21.
3. Rizopus rot (Rhizopus stolonifer).
The Symptoms  fruit rot, watery, light brown and when pressed will release the liquid is cloudy; In the storage, fruit infected mushroom mycelium will be covered in white and black spores. You can Control this get rid of the diseased fruit, good post-harvest and cultivation with plastic mulch.You can control of chemical fungicide Dithane M-45 or Antracol 70 WP.
4. Red pith (Phytophthora fragariae Hickman)
The fungus attacks the roots so the plants grow stunted, the leaves are not fresh, especially wilting sometimes during the day.You can control of chemical fungicide Dithane M-45 or Antracol 70 WP.
5. Powdery mildew (Uncinula Necator or Sphaetotheca mascularis).

The symptoms  the affected areas, especially the leaves, covered with a thin layer of powdery white, the flowers will dry up and fall. To Control this fungus with fungicide Benlate or Rubigan 120 EC.
6. Scorched leaves (Diplocarpon earliana or Marssonina fragariae).

The Symptoms are the leaves mottled ovoid to irregularly angled, dark purple. You can control of chemical fungicide Dithane M-45 or Antracol 70 WP.
7. Leaf spot
This diseases caused by Ramularia tulasnii or Mycosphaerella fragariae, The symptoms that you can observe are have  small dark purple spots on the leaves. Center for brown spots that will turn white;
8. Late blight (Phomopsis obscurans).
This symptoms of diseases are have stain gray bull surrounded by red, purple, and then wound-like stains form a V. To Control this disease using with Dithane M-45, Antracol Daconil 70 WP or 75 WP.
9. Vertisillium wilt (Verticillium dahliae)
Symptoms can looks are the infected leaves yellowish to brown, wilted and dead plants. Please Control through gas fumigation with Basamid-G.
10. Virus
These Aphids transmitted through insect or mite. The Symptoms are the leaf color changes from green to yellow (khlorosis) along the bone or leaf spots (motle), the leaves become wrinkled, stiff, stunted plants. You can control use virus-free seed, destroying infected plants, spraying pesticides to control insects carrying the virus. Prevention of pests and diseases can generally be done by keeping a clean garden / crop, planted in unison (to break the cycle of life), planting the seeds of a healthy, providing the recommended fertilizer so the plants grow healthy, do not crop rotation to plant and prune the Rosaceae family of plants / revoke the plant. Cultivate strawberries with plastic mulch will also suppress the growth of pests / diseases. Especially for diseases, improvement of drainage usually can decrease attack.

Controlling Pest and Diseases of Potato Plant

Look the nutritional content, the potato is the main source of carbohydrates. Potato became the staple food in many western countries. To get more good production of potato also to know about management pest and diseases of this plant.

The basic for successful management of potato pest, diseases and nutritional disorder I integrated crop management. This implies prevention of insect infestation and infection by pathogens through the use of adequate cultural practices and the conservation of natural enemies. Adequate control practices include the selection of healthy planting material from well adapted varieties, rotation, good field sanitation and maintenance of soil fertility. Conservation of natural enemies involves avoidance of pesticide use, enhancement of natural enemy action through favorable cultivation practices and the introduction of natural enemies if necessary.

Many insect species attack potato and the importance of different species varies between agro ecological zones. Within a zone, the importance of species depends on the season; many insect pest are a problem mainly in dry periods

The pest and diseases of potatoes plant as follow:

A. Pest on Potatoes Plant 

1. Caterpillar (Spodoptera litura)
Symptoms: caterpillars attack the leaves by eating the epidermis and the leaf tissue until exhausted.

Control:
Mechanically by cutting the leaves that have been plastered with eggs; chemistry with Azordin, Diazinon 60 EC, 50 EC Sumithion.2. Aphids (Aphis Sp)
Symptoms: aphids suck fluids and infect the plant, can also transmit the virus to soybean plants.
Control: a way to cut and burn infected leaves. If so much plant have been infected you can spray with Roxion 40 EC, Dicarzol 25 SP insecticide.

3.  Gryllotalpa
Symptoms: attack the bulbs in the garden, roots, young shoots and young plants. As a result, plants become susceptible to bacterial infections.
Control: Sevin 85 S using the flour mixed with manure.

4. Root weevils (Phtorimae poerculella)
Symptoms: the leaves are dark red and looks like a tangle of yarn that is a gray caterpillar wrapping material. Tubers are attacked when cleaved, would look the pits because most bulbs have been eaten.
Control: chemically using Selecron 500 EC, 25 EC Ekalux, Orthene & 5 SP, Lammnate L.5. Thrips   (Thrips tabaci)
Symptoms: Potato leaves have patches of white, then changed to a silver gray and then dry. The attack starts from the ends of the young leaves.
Control: mechanically by cutting the leaves are affected; chemically using Basudin 60 EC, Mitac 200 EC, Diazenon, Bayrusil Dicarzol 25 EC or 25 SP.

B. Disease of Potato

1. Late blight (Phytopthora infestans fungus).
Symptoms: Small patches occur in green-gray and slightly damp, then these patches will grow and the color changed to brown to black with white edges of the sporangium. The next leaves will rot and die.
Control: Insecticide that can use to control this pest are Antracol 70 WP, Dithane M-45, Brestan 60, Polyram 80 WP, 80 WP Velimek insecticide..
2.Bacterial  Diseases by Pseudomonas solanacearum
Symptoms:  The top of potato young leaves some wilted plants and old leaves, leaf yellowing of the bottom.
Control: Prevent the diseases attacking by keeping the garden sanitation, plant crop rotation. Chemical eradication can use the bactericidal, Agrimycin atu Agrept 25 WP.
3. Root rot disease (Colleotrichum coccodes   )
Symptoms: The leaves turn yellow and curl, then withered and dry. At the plant in the ground there are patches of brown. Infection will cause root rot and young tubers.
Control: Prevent from diseases attacking by crop rotation, sanitation, gardens and the use of good seed.
4. Fusarium Disease  (Fusarium sp.  )
Symptoms: The infection causes tuber rot in tubers that causes plants to wilt. This disease also attacks potatoes in storage. Infection enters through the wounds caused by nematodes / mechanical factors.
Control: Please to avoid injury when weeding. Chemical control with Benlate.
5. Dry spot disease (Early Blight) or Alternaria solani

Fungi diseased are breed in dry areas.
Symptoms: The infected leaves stained irregularly scattered small, dark brown, and then extended to younger leaves. Tuber skin surface irregularly mottled dark, dry, wrinkled and tough.
Control: Prevent from this fungi attacking by crop rotation.
6. Disease due to virus
Viruses that attack are:
- Potato Leaf Roll Virus (PLRV) causes leaf curl;
- Potato Virus X (PVX) causes latent mosaic on the leaves;
- Potato Virus Y (PVY) causing mosaic or local necrosis;
- Potato Virus A (PVA) causes mosaic software, (5) Potato virus M (PVM) causes mosaic roll;
- Potato Virus S (PVS) causing mosaic limp.
Symptoms: in the attack, the plants grow stunted, straight , leaf yellowing and tissue death. The spread of viruses carried by farm equipment, aphids Aphis spiraecola, A. gossypii and Myzus persicae, and Coccinella Epilachna beetles and nematodes.

Control: no pesticides to control the virus, prevention and control is done by planting virus-free seedlings, cleaning equipment, prune and burn diseased plants, eradicate vectors and crop rotation.

Pest and Diseases on Corn Plant

Corn plant consists of roots, stems, leaves, flowers and seeds. Several types of pests and diseases that often damage maize plants and disrupt the growth of corn and affect productivity include:

Prior to the occurrence of pests and diseases in the corn crop, it can be implemented preventive measures by way of:
a. The use of resistant seed varieties
b. The use of agronomic techniques
c. The use of disinfectants to seeds to be planted
d. Maintenance and utilization of natural enemies

The final step to eradicate plant pests with the use of pesticide materials if the attack had reached the economic threshold or above the economic threshold, in this case must be carried out field research and data collection as well as possible.

1.Lundi pests

This pest attacking plants at the time of growth control by regulating the time of planting, or by using a systemic insecticide, which is sown into the ground, for example Mephosfolan or Carbofuran at a dose of 1.5 kg active ingredient / ha, another way of control is to plant more early.2. Flies Seeds (Antherigona exigua Stein)

This pest attacking the new seeds to grow, control is performed 2-3 days, or the use of insecticides folidol, agrocide, such as the recommended dose (eg 1.5 to 2 cc / liter of water)

3. Land caterpillar (Agrotis sp)

The pest are attack small plants, is controlled by manually by killing caterpillars, or sprinkled Carbopuran soil before planting. The following chemicals are recommended for spraying: carbaryl 0.2 per cent; endosulfan 0.04 per cent, dimethoate 0.03 per cent; quinalphos 0.05 per cent; formothion 0.05 per cent; methyl demeton 0.04 per cent, phosphamidon 0.02 per cent, methyl parathion 0.05 per cent and chlorpyrifos 0.05 per cent.4. Leaf caterpillar (Prodenia litura F)

This pest attacking shoots at 1-month-old plants, should be sprayed with one of the recommended insecticides.The pests being nocturnal in their habits, control operations have to be taken up either during early morning hours or late evening hours or preferably during nights. Spraying or dusting with a persistent insecticide like carbaryl/ endosulfan/quinalphos at 0.1% gives satisfactory results to control the pest.

5. Stem borer (Sesamia inferens Wlk)

This pest attacking plants that are flowering, prevention can be done by spraying the plants before flowering time (with a recommended insecticide and appropriate dosage). Spraying or dusting with a persistent insecticide like carbaryl/ endosulfan/quinalphos at 0.1% gives satisfactory results to control the pest.6. Army worm (Leucania unifenuta HAW)

This pest attacking plants grown in the evening, soon controlled when the attack has reached above the economic threshold. When once the larva mines into the leaf it will be in comparative safety against chemicals, particularly the dust forms. Hence the most rational approach is to treat the crop with penetrating sprays of contact insecticides timing the same either with the light trap information or with the first appearance of a few mines and larval chambers on the plants. Hence vigilance on the part of the farmer goes a long way in the control of this pest. The following chemicals are recommended for spraying: carbaryl 0.2 per cent; endosulfan 0.04 per cent, dimethoate 0.03 per cent; quinalphos 0.05 per cent; formothion 0.05 per cent; methyl demeton 0.04 per cent, phosphamidon 0.02 per cent, methyl parathion 0.05 per cent and chlorpyrifos 0.05 per cent.

7. Cob worm (Heliothis armigera HSN)

This is a plant destroyer of flies, will attack the fruit or corn, spray only when needed, spray a good time is between 6:00 to 9:00 a.m. the morning or in the evening between 16:00 to 18:00.Since the caterpillars in their early instars are gregarious in their feeding habit, collecting the leaves on which they are feeding along with egg mass collection and destroying them is necessary. Dusting with carbaryl or parathion or endosulfan @ 25-30 kg/ha a week after large scale emergence of moths controls the early instars of the caterpillars. However, control of grown up larvae is difficult due to thick growth of hair on their bodies. Spraying with DDVP, fenitrothion, endosulfan, dimethoate or formothion @ 0.1 per cent may control the grown up larvae to a satisfactory extent.

8.  Corn Downy mildew

The diseases in the form of fungi (mushrooms), symptoms arise attack a wide yellow stripe on the leaves, when washed from the seed then any newly emerging young leaves appear yellow, is transmitted through seed or through wind-borne spores. Way control planting resistant varieties, planting simultaneously, mixing sentrimone.9. Helminthosporium diseases

This is fungal diseases with symptoms of an attack form a yellow oval spot at the center and surrounded by a brown color, attacking the leaves, stem and cob, how to avoid the control of continuous cultivation, spraying with a fungicide as per the instructions and recommendations.

In order to maintain the quantity and quality of production of maize farming, the practices to control pests and diseases is important to be implemented. The steps that need to be taken in plant pest control activities should take account of environmental rules and put the principles of integrated pest and disease control.

Pest on Papaya Fruit

An excellent source of vitamin A and C an aid to digestion, papaya is a popular fruit. Papaya can be easily grown in most of state below 2000 feet. In highest elevations the plant has difficulty bearing mature fruit. Best production will be at 500 feet or lower.

You can use seeds from fresh of papaya. However to do this you must first dry several dozen seed several   in a dish or jar lid for several days. Then plant the seeds in groups of 3 or 4, or scatter all the seed in area about 2 x 10 feet. When planting seeds, cover ¼ inch of soil. Tamp down and water gently. Never allow the soil to dry out round your papaya tress, especially when n they young

Now i will discuss about most dangerous pest that attacking papaya cultivation. Please read the discussion follow as below :

Fruit Flies
It is  important pest of papaya. It is of worldwide distribution. Though all report generally indicate that papaya is the only host(e.g Philips, 1946) mango has also been reported as a host by some workers( Wolfenbarger, 1955). The damage caused by this pest is similar to that of other fruit flies. However apart from mature fruit  the papaya fruit fly can oviposit in the seed cavity on young unripened fruit with early larvae feeding on the seed and lining of the seed cavity and later larvae in the flesh. Fruit fly pest plants are usually pierced with a snout and mouth and then put the fruit through the skin . Period time egg incubation of about 0.1 to 20 days. Papaya fruit fly breeding fast and clustered. The effects of fruit loss stings, if not a bump fall the fruit.
How to overcome them please to create a trap with a plastic bottle in the stimuli used petrogenol, or put in mothballs hanging around papaya, fruit flies function as a repellent making fruit flies do not bring himself to eat.

Plant Lice (aphids).
The expression of the pest depend on climatic condition, plant nutrition status and varietal sensibility. Characteristics  of this pest have a soft body length of 2-3 mm with colour green, yellow or black. Tube has a pair of protrusions on the back of the abdomen, grouse and long legs. Adult fleas, there are winged and not. The destroy  plants by sucking the fluid with a long suction   in the mouth.
This Mite can be eradicated by spraying  Derris powder or flour of sulfur on the leaves.

Mite red / brown / green
Similar forms of pest spider mites,this pest are small less than 1mm. This mite destroy the  papaya plant pests by suck plant on young leaves. Parts attacked become scars discolored  and blackened yellow polka dots and grow shrink unhealthy. .
Solution: If exposed to red mite control with sulfur powder on the exhale the way to the surface of infected papaya leaves. You also can spraying using Akarisida (such kelthane or morestan). (Note : Read the rules of use in packaging and do not wear more than the recommended dose)