Soybean, also known as the red worm, is one of the important pests that harm soybeans. The flowering period to the pod-forming period is the best time to control soybeans.
Agricultural control: use soybean varieties with less pods and early maturity. In the autumn, the land was ploughed in time to reduce the source of overwintering insects.
Biological control: 199% mineral oil is diluted 150~200 times with water, mixed with 1000 times of Bacillus thuringiensis; or mixed with 1% matrine and azadirachtin 1000 times. 2 Adults released the Trichogramma during the spawning period, focusing on the bee time and the spawning period of the spawning beetle, placing 10,000 heads per acre, setting a bee spot on one acre, and placing the bee at a distance of 26×26 Meter.
Chemical control: 99% mineral oil is diluted 150~200 times with water, mixed with 4.5% beta-cypermethrin 1000 times; or sprayed with 20% chrysanthemum 1500 times. Control once every 7 days, control twice to control adults and larvae. It is better to use the two agents alternately.
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