A few years ago, I harvested the soybeans directly into the bag at the pick-up point at my friend's pick-up point, and came back to pick them up so that I could squeeze some soy milk for breakfast. This fine selection is amazing, many of them have been carved by soybean heartworms, and some beans have a hole in their seed coats, which are not good to be bitten in.
In the context of stabilizing grain and expanding soybeans, the soybean area has increased passively in some places, neglected management, and the damage of pests and diseases is serious, which is one of them; In addition, the advantages of soybeans are not obvious, the cost is increasing year by year, and the enthusiasm is not high for completing the planting area or obtaining subsidies.
Soybean heartworms should take the measures of "prevention first, comprehensive control", actively promote green prevention and control technology, ensure self-sufficiency, sustainable, green and healthy development.
One. Clean the countryside and reduce the base of wintering. Soybean heartworm is called small bloodworm, belonging to the family Lepidoptera, commonly known as soybean pod moth. Only one generation occurs a year, and the mature larvae overwinter as cocoons in soybean fields, drying fields and nearby soil. Autumn ploughing and autumn land preparation, destroying wintering sites and reducing insect density.
Two. Biocontrol.
When the adult soybean heartworm appears in the field, and the amount of each clump of moth doubles, it indicates that the adult has entered the peak period, and the yellow red-eyed bee can be released at this time. A total of 25,000-30,000 bees per mu can be put in early August and mid-August respectively, with an interval of 7 days each time, and it is best to put 3 points evenly per mu each time.
Three. Sex pheromones trap adult worms.
Sex pheromones trap adult worms. At the beginning of adult emergence, in the vicinity of villages or farmland, traps and dry moth traps with an effective period of more than 2 months are used to trap and kill adults.
Four. Pharmaceutical prevention and control.
Before the ridge is sealed, chlorantraniliprole, tetrachlorantraniliprole, emamectin benzoate, cyhalothrin, deltamethrin and other agents can be used; Ridge sealing plots, the use of dichlorvos emulsifiable concentrate fumigation control.