Applying methods in the rainy days

First, pay attention to the selection of drugs in the rainy season.

1. Pay attention to the selection of pesticides with strong systemic absorption. Such as dimethoate, omethoate, leaf dry, carbendazim, dipyridamole, thiophanate, triadimefon, ethylphosphorus aluminum, nail cream, tricyclazole, fluconazole, etc., such pesticides are absorbed by the stems and leaves of crops After that, it can be quickly transmitted to various parts of the plant, and its efficacy is less affected by rainfall; methyl 1605, trichlorfon, anti-carbazone, chlorfenapyr, fenvalerate, green milk copper, and dexamethasone, It has strong penetrating power and anti-scour ability on the surface of crops, so it is also suitable for application in the rainy season.

2, should pay attention to the selection of fast-acting pesticides with strong knockdown. Such as dichlorvos, omethoate, monocrotophos, anti-Suiwei, enemy killing, pyrethroids and other pesticides, have a strong contact, poisoning effect, strong knockdown, soon after spraying, play by the rain Less affected.

3, to use the micro-biological pesticides. According to the control object, microbial pesticides such as Beauveria bassiana and Penicillium spp. may be used as appropriate. These agents are applied during the high-humidity rainy season, and the efficacy is increased.

Second, look at the weather application. When applying pesticides, it is necessary to pay attention to spraying in the rain-free period. Under normal circumstances, if it is rained within 24 hours after spraying, it should be re-sprayed once and the spraying concentration should be appropriately reduced.

Third, add adhesive to the liquid. Appropriate amount of neutral detergent, starch, soy flour, special effect king and other adhesives in the liquid to enhance the adhesion of pesticides on the stems and leaves of the crops, prevent rain erosion and improve the control effect.

Fourth, adjust the ratio of concentration. Taking into account the dilution of the shower gel, the application of the season should be appropriately increased in the rainy season.