Beware of moths and insects in the shed

After entering the summer, a high-temperature and drought-prone environment is prone to occur in the shed, creating favorable conditions for the occurrence of various types of pests. Not only maggots, locusts, etc., continue to be harmed in the sheds, but also the number of moths such as Spodoptera littoralis, Plutella xylostella, and Pieris rapae is rapidly increasing, causing farmers to experience serious problems. These pests not only eat the sap of the plants but also feed on the fruits, resulting in dull or cracking of the peel, and the commercial nature is greatly reduced. Therefore, vegetable farmers should take precautions as early as possible to prevent outbreaks of moths and butterflies.

At the outlet, set up an insect net

In order to regulate the temperature and humidity in the shed, it is indispensable for the shed to release air. To prevent pests from entering the greenhouse, it is recommended that the vegetable farmer set up an insect-preventing net at the air outlet and the front face of the greenhouse as soon as possible. The number of insect nets should be determined according to the specific circumstances, too close to the ventilation is not conducive to cooling, too sparse is easy to enter the insects, will not achieve pest control effect. Insect net must be set strictly, can not leave gaps, during the period to minimize uncovered nets, so as to avoid adult insects fly into, and timely inspection of damage to the film, timely repair, do not give pests an opportunity.

Use pest tropism to seduce

Many adults of leaf-eating pests have strong phototaxis and chemotaxis, and vegetable farmers can use blacklights or poison baits to trap and kill pests. Such as Spodoptera litura adult night, not only strong phototaxis, but also on the sweet and sour liquid and fermented carrots, malt and other tropism, vegetable farmers can use black light and sweet and sour liquid trapping, you can also use artificial synthesis of vegetables Moth sex attractant trap. The use of pest phototaxis and chemotaxis to control pests has the advantages of good efficacy, no pollution, no residue, no impact on ecological balance, etc., and is a key method of pest control in the future.

Timely and rational use of medicine

Pests occur year round, pesticides are used frequently, and many pests have developed resistance to various types of pesticides. Therefore, in the prevention and treatment, insecticides should be carefully selected according to the range and degree of resistance of various pests, and the use of insecticides should be carefully selected. Attention should be paid to the use of pesticides. Never use a pesticide throughout the year to delay drug resistance. For the control of pests such as Plutella xylostella and Noctuidae, the commonly used agents include chlorantraniliprole, cypermethrin, and methotrexate.

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