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Eggplant diseases and pests: symptoms and control methods


Diseases and pests on seedlings and already grown eggplant bushes are different, but most often are the result of disturbances in agricultural technology and accompany the basic errors of caring for the garden crop. The fight against them should be carried out when the first signs of damage are detected, therefore, before starting treatment, it is necessary to establish the cause correctly and know what methods of effective plant protection are available.

Diseases and pests of seedlings and adult plants

Growing eggplant in home gardening is a troublesome task, requiring an amateur grower a sufficiently large amount of time and knowledge, since any deviations from cultivation technology can cause weakening of the plant and damage to diseases or pests.

If the first signs of the disease are missed, then very often a critical decrease in yield occurs or the plant dies. That is why it is very important to timely process both seedling material and adult eggplant bushes with the right means.

Pests and diseases of eggplant

Damaging factorFirst signs of the diseaseDefeat result
FusariumInfected seedlings are thin and stunted, adult shrubs turn completely yellow and quickly fade.The result of Fusarium wilting is the complete death of the root system
Late blightThe first symptom of the disease is the appearance of brown spots, which in the rain are covered with a characteristic white coatingIf you do not make attempts to cure the plant, then the fruits rot, and the aerial part of the bush dies quickly
Cruciferous fleas“Living” black dots appear on the plant, which quickly eat up green leavesThis pest in a few days is able to completely destroy eggplant seedlings
WhiteflyWhite small midges appear on the plantThe pest eats plant juices, weakening bushes and reducing productivity
AphidSmall insects, which, depending on the species, may have different colors and sizes.The pest eats plant juices, weakening bushes and reducing productivity.
Spider miteTicks are located mainly on the underside of the leaves, but with a strong defeat, also on the apical part of the shoots, forming a clearly visible webGnaws the skin on the leaves and sucks the liquid contents of the cells, as a result of which the plant weakens or completely dies
BlacklegThe root neck becomes darker and tighter, and the bush begins to wither away quickly enoughIn the presence of soft moist soil and high humidity, the death of the plant occurs very quickly
BotritisThe appearance on the aerial part of the plant of dark increasing spots, covered with a gray coatingA fungal disease can completely destroy plantings in a short time
StolburRed leaves appear, the fragility of the stem part of the plant and the empty flower are observedCycadic disease often causes total crop loss
MosaicOn the surface of leaves and fruits, a colorful mottled pattern and tan spotsViral disease quickly causes wilting and complete death of the eggplant bush
SclerotiniaLeaves or fruits are streaked with brown ringsThe shoots die off quickly enough, which can cause a complete loss of crop

Treatment with folk remedies

In recent years, amateur vegetable growers have less and less begun to use chemical preparations for the treatment of garden crops, due to the desire to get an environmentally friendly crop. With a slight damage to the eggplant bushes by pathogenic microflora, it is enough to treat the plants with folk remedies. It should be remembered that mMassive damage to garden crops by diseases or pests will require more serious therapeutic measures, and the use of folk remedies in this case is completely ineffective.

Damaging factorRecommended remedyApplication technology
Cruciferous fleaA solution of a bite diluted with a glass of 9% table vinegar or a couple of tablespoons of 70% vinegar essence in a bucket of warm waterWeekly spraying of plantings in the early morning hours
Spider miteGrind several heads of garlic and add water for three tablespoons of garlic per 500 ml of water. Insist under the lid, in a dark place for a week, and then add so much waterTreat infected plants with a spray bottle or wipe leaves with a damp cloth
Whitefly, aphidHang glue traps or use garlic infusion, for which five large cloves of garlic chop and dissolve in a liter of warm waterPour the prepared strained infusion into the spray bottle, then spray the plants and soil around the bushes as thoroughly as possible.
Late blightIn 10 liters of water add half a bucket of ash and leave for three days, stirring occasionally. Bring to a volume of 30 liters, add 30 g of chopped laundry soapSeedling treatment after adaptation, before flowering and immediately after the first ovaries
BlacklegAsh pubescence under the landLoosen the soil and sprinkle with wood ash or dust based on crushed charcoal
BotritisSoda solution based on 70 g of soda diluted in a bucket of water with vegetable oil and a small amount of dishwashing detergentSprayer processing must be carried out in cloudy and dry weather.
StolburUse of tobacco, garlic or soap solutionSpraying is carried out in cloudy, but not rainy weather, after transplanting seedlings into the ground and then after two to three weeks
SclerotiniaTop dressing + removal of damaged areas with crushed coal treatmentFor top dressing in 10 liters of warm water, dilute 10 g of urea, 1 g of zinc sulfate and 1 g of copper sulfate

Purchased treatment

If the garden culture is sick, and the defeat has become widespread, then fight with a disease or pests should be the most effective, powerful chemicals.

Why do eggplant leaves wither

Damaging factorRecommended remedyApplication technology
Whitefly, aphid, cruciferous fleaEdited by Aktara, Aktellik, Double Effect, Admiral, Commander, Mospilan, Tanrek or OberonDilute the drug according to the instructions and spray the aerial part of the plant with the resulting solution at a frequency recommended by the manufacturer.
Spider miteApollo based on clofentesin, diluted in an amount of 0.4 ml per liter of waterSpraying is carried out in cloudy, but not rainy weather, after transplanting seedlings into the ground and then after two to three weeks
Late blight"Concento", diluted at the rate of 20 ml per 5 liters of waterProcessing bushes during the growing season. The first is preventive, and all subsequent ones with an interval of a week
FusariumPreparations from the group of benzimidazoles, such as Fundazol and BenazolEtching with these drugs is carried out a couple of weeks before sowing, and spraying and spilling of the soil - at the vegetation stage
BlacklegThe drug "Profit", diluted at the rate of 20 g per 10 liters of waterYou can repeat the treatment after a couple of weeks, but no more than three times during the growing season
BotritisThe use of the drug TMTD according to the manufacturer's instructionsSpraying eggplant bushes with a solution based on the drug at the beginning of flowering.
StolburProcessing eggplant bushes with such preparations as Decis, Aktara, Actellik, Fitoverm or FufanolSpraying is carried out in cloudy, but not rainy weather, after transplanting seedlings into the ground and then after two to three weeks
MosaicTo treat the bushes with a solution of "Karbofos", diluted at the rate of 75 g of the drug per 10 liters of waterEggplant plantings are processed in cloudy but not rainy weather, as needed
SclerotiniaThe drug "Oksihom" in an amount of 20 g or "Topaz" in the amount of one ampoule per 10 liters of waterProcessing plants must be carried out in cloudy and dry weather

Preventive actions

The main preventive measures are standard for garden crops and consist in observing crop rotation, mandatory destruction of plant debris, steaming soil, timely removal of diseased plants, and the use of biological and chemical seed dressing. It is necessary to ensure that eggplant seedlings do not stretchtoo
long stems during transplantation need to be buried to the cotyledon leaves.

It is much more difficult to treat eggplant diseases than to prevent damage to a garden plant by pathogenic microflora:

  • for the prevention of lesions with a black leg, one should thin out crops in a timely manner, as well as observe the regimes of irrigation measures and temperature indicators;
  • gray rot can be prevented only by removing all diseased plants from the ridges, followed by soil fumigation and treatment of the remaining bushes with fungicidal agents;
  • to prevent massive damage to eggplant bushes by mosaic, it is necessary to disinfect the entire garden tool when signs of the disease are detected, and burn the affected plants;

  • prevention of a fairly common white rot is the use of only warm water for irrigation, as well as the powder of suspicious eggplant bushes with chalk or a layer of wood ash;
  • damage by vertebral rot can be prevented by strict observance of agricultural technology, control of the chemical composition of the soil, balanced introduction of nitrogen and basic mineral fertilizers;
  • watering eggplant bushes with a solution based on Planriz or Pseudobacterin-2 gives a good result in the prevention of fusariosis after planting in a permanent place at the rate of 100 ml per plant.

How to deal with eggplant pests by folk methods

The main causes of diseases of the greenhouse eggplant are represented by frequent and plentiful watering, excessive humidity, the use of infected seeds or soil, and the lack of ventilation. It should be remembered that, unfortunately, greenhouse walls are not able to protect plants from damaging factors, therefore the treatment and prevention of diseases and pests inside the greenhouse is mandatory.