Control methods of eggplant thrips

Thrips is one of the common pests in the growing period of eggplant and other crops, which seriously affects the plant income of farmers, and may cause no harvest when it breaks out. Let's work with the editor to understand the harm, occurrence regularity and control methods of eggplant thrips.

1. Harm

Thrips suck heart leaves, tender stems and young fruit juices with adults and nymphs, which makes the shoots and leaves of the damaged plants curl, and the heart leaves can not expand normally, resulting in clumps. Young fruit damage is very easy to deformity, serious will cause fruit drop phenomenon, the injured fruit skin rough with spots, or with brown ripples, covered with "rust skin", fruit deformity.

2. Occurrence regularity

Thrips can occur for more than 20 generations a year in areas with suitable climates. adults survive the winter in Solanaceae, leguminous vegetables and weeds or soil crevices, and a small number of nymphs survive the winter. When the temperature rises above 12 degrees, thrips will recover and begin to gain control on eggplant in winter and transfer to other vegetables in summer. Its adults are lively, agile and able to fly, and they are mostly hidden in the growth nodes of melon seedlings and the hairy antler of young melons during the day. The eggs are parasitized in tissues such as growing points, tender leaves, young melons and seedlings, and can be fed after hatching.

3. Prevention and control methods

When raising seedlings, we should transplant at the right time and avoid the peak period as far as possible. after the seedlings are unearthed, film mulching can be used instead of grass mulching, which can greatly reduce the insect population, clean up the wild Solanaceae and legumes near the field in time, and effectively reduce the source of insects. When eggplant is found to be harmed by thrips, it should be propagated by spraying medicine in time. It can be sprayed with 1.5% imidacloprid EC 1500 × 2000, or 1.8% avermectin 4000 × 5000 times, or 45% malathion EC 1000 times. When using, you should pay attention to the alternate use of chemicals to avoid drug resistance in thrips.

The above is the introduction of eggplant thrips control methods, hope to help you, want to know more related knowledge, please pay attention to us.