Important pests and diseases of cucumber

 
  •  Dacus Ciliatus

The major agricultural hosts of Fly flies include melon, cantaloupe, green cucumber, chamomile, cucumber, squash and watermelon. The larvae of this pest by feeding on the fruits cause spoilage and unusable crop. It is also economically detrimental to farmers. Farmers often sprinkle their farms with successive pesticides and in some cases unauthorized and dangerous pests due to insufficient knowledge of pest life. Not only are these sprays not very effective in controlling pests, they also harvest the fruit early and deliver it to the consumer market due to the failure to observe the pesticides in their crops.


 
Pest damage

Pest larvae feed on the fruit causing spoilage and unusable fruit.

It is economically very harmful to farmers.


 
 
Pest Control and Prevention Methods

Daily harvesting of pests infected with pests and burying them in depth

Run plowing and disk immediately after harvest



 
  • Aphis gossypii


Plants such as cucumber and tomato are the main host of this aphid.
The aphids squeeze the plant and when the aphids do so, the plant gradually weakens and its ability to grow decreases, which directly affects the amount of crop obtained. On the other hand, the aphid also damages the plant by transmitting plant pathogens as well as the secretion of a viscous material from the end of its body called honey, which provides a suitable environment for the growth of a variety of fungi. These insects also carry the viral disease in plants


 
Pest damage

Sucking the vegetable juice of the plant impairs carbohydrates and prevents the plant from growing.

In infected plants the leaves are wrapped and the flowers are shed
.


Pest Control and Prevention Methods


Eliminate any aphid shelters including host weeds

Use sticky yellow strips to track and remove pests




 
  • Thrips cucumber
The host range of Thrips is very broad which includes eggplant, peppers, squash, beans, onions, citrus fruits, peas, chrysanthemums, legumes, melons, cucumbers, sesame, sunflowers, soybeans, squash, tomatoes and more. This pest damages the plant by feeding on the sap on the leaves and petals, and this pest is more likely to use young tissues. If the damage is high, the leaves of the plant dry up and die. Tryps can transmit quickly and infect nearby healthy plants, so take care of your other plants. Unfortunately, this insect also carries a variety of viruses in some cases.
 
Pest damage

The most damage to the trips is in the 2-4 leaf stage

 Leaves infected with this pest are twisted downwards

The insect feeding site is shown as white-silver-yellow spots
Wilt, weakness, leaf discoloration, deformity and stopping of crop growth are symptoms of damage

Due to the severity of the pest damage, the leaf tip burns and bends, and eventually the plant disappears.


 
 
Pest Control and Prevention Methods

Because weeds are hosts of the pest, controlling, removing and eliminating them is very effective in reducing pest populations.

Given that the insect spends the winter deep in the soil, deep plowing is effective in reducing pest populations.

Also shake the flowers and leaves on a tray or white paper and see the complete insect trips, check for tan spots on the leaves
Chemical control of trypsin is difficult because of the location and activity of the insect on the underside of leaves and among the flowers and inside the buds. Chemical pesticides also have no effect on the eggs of this pest, since the eggs are planted in the plant tissue and do not affect the pesticides. It should be noted that systemic insecticides do not have sufficient effect on trypsin and appropriate contact insecticides should be used to combat trypsin.