Asparagus, also known as stone cedar and dragon's whiskers, is a perennial plant of the genus Asparton in the family Liliaceae. Due to the increase in the planting area of asparagus year by year, serious problems have occurred in the asparagus planting industry, and asparagus diseases and insect pests have increased, which has become an important factor restricting the development of asparagus.
Fourteen-point negative mud worm, also known as asparagus negative mud worm, asparagus leaf carapace, thin neck leaf carapace, belongs to the Coleoptera negative mud worm family, because the larvae anus open upwards, the excrement is piled on the back, so it is called negative mud worm. The insect is distributed in the asparagus planting areas in northern China and the harm is serious.
Negative mud worms harm asparagus young stems
So how can we control negative mud worms? In the early stage, the bamboo shoot garden was cleaned up and artificially arrested, but the effect was minimal. Therefore, only chemical control can be taken, and the root treatment of asparagus with 2.5% high-efficiency cypermethrin emulsion oil is better.
Preparation of medicines
Irrigate the roots