Pests do not feed in winter and are the weakest link in their life cycle. Therefore, pest control in winter can often receive a multiplier effect.
1, clean pastoral
Some pests are often lurking in the roots, stubbles, dead branches, fallen leaves, fallen fruit, and other residues of host plants. The residues are burned, fertilized, or buried in time after the crops are harvested. This can often eliminate a large number of overwintering pests.
Winter plowing winter irrigation
Winter plowing and winter irrigation are both important measures for increasing agricultural production and effective methods for eliminating overwintering pests. Through deep plowing in winter, the original living environment of the pests can be changed, and the deep-layered pests can be turned to the surface to dry, freeze to death or be eaten by natural enemies, so that the insects in the deep underground can not be normally feathered and become suffocated, thus reducing the number of pests. Overwintering the source of insects; followed by winter irrigation after cultivation, not only can sink, weathering the soil, but also frozen part of the overwintering pests. According to the survey, the first winter plowing can drown 76% to 85.6% of the cotton bollworms. After plowing winter plowing, the pupae are buried deep in the soil, which can reduce the survival rate by 86.4% to 92.5%; the winter irrigation ratio is not winter irrigation, and the cotton bollworm is Overwintering pods decreased by 43.5% to 72.3%.
3, eradicate weeds
Some pests often migrate to winter in fields and surrounding weeds after they are harvested. By early spring, these weeds often become “refuges†and wild hosts for wintering pests; experts have done it on weeds. Investigations revealed that 8 to 15 wintering tigers were found per m2, and cotton red spiders had a total of 1194 hundred insects (eggs) in early spring weeds. Therefore, it is an effective measure to prevent and control overwintering pests by combining fat and fertilizer in winter and spring, eradicating weeds in and outside the fields, or spraying the weeds in early spring.
4, handle the host
Some pests (such as corn borer, etc.) often hide in the stem or cob of the host crop after harvesting; in winter or early spring, they use the stem or cob of these host crops as fuel, feed, fertilizer, etc. All treatment can greatly reduce the overwintering base of pests.
Shaanxi Hongbaiyi Biotech Co., Ltd. , https://www.sxhongbaiyi.com