How to control aphids on peach trees? The latest methods are here

The peach aphid is a polyphagous pest, with host plants numbering about 285 species in 74 families, and it is a heteroecious (host-alternating) parasite. Its winter hosts are mainly Rosaceae fruit trees such as pear, peach, plum, Japanese apricot, and cherry, while its summer host crops mainly include many crops such as Chinese cabbage, cabbage, radish, mustard, rapeseed, turnip, sweet pepper, chili pepper, and spinach. Now let's take a look together at the control methods for peach aphids!

Trunk painting with pesticide

Take 1 part of 40% omethoate, add 1 part of multi-functional plant synergist and 2 parts of water, mix to make a pesticide solution, and use a brush to paint a pesticide ring about 10 cm wide on the trunk. If the bark is rough, first scrape off the old peeling bark before applying the pesticide. After painting, wrap it well with newspaper or plastic film.

Trunk injection of pesticide

Trunk injection of pesticide on peach trees means using an iron awl to pierce holes obliquely from top to bottom on the main trunk, reaching deep into the xylem, then using a No. 8 syringe to inject 40% dimethoate, sealing the hole opening, and after 2 to 3 days more than 95% of the aphids can be killed.

Spraying pesticide

There are many pesticides that can be chosen for use. Those commonly used in production include 35% endosulfan emulsifiable concentrate at 1500 times dilution, 50% pirimicarb at 3000 to 4000 times dilution, 50% phoxim emulsifiable concentrate at 1500 times dilution, 40% omethoate at 1500 times dilution, 50% malathion (Malathon) emulsifiable concentrate at 1000 times dilution, 10% imidacloprid (pymetrozine) wettable powder at 5000 times dilution, etc. To improve the control effect, a certain amount of spreader can be added to the pesticide solution, and several pesticides should be used alternately, avoiding the use of a single pesticide as much as possible.

Protect natural enemies

Aphids have many natural enemies, such as ladybugs, hoverflies, green lacewings, and parasitic wasps, all of which have a strong suppressive effect on aphids. Therefore, broad-spectrum insecticides should be sprayed as little as possible, and spraying should be avoided during periods when natural enemies are abundant, so as to protect natural enemies and use them to eliminate aphids. This is of great significance for protecting the orchard ecological environment and producing pollution-free green fruit.