Yet recent declines in the population of these essential insects threaten the lucrative agricultural industry.
可是，最近蜜蜂数量的减少，威胁到这些收益良好的农副产品的生产。
2
Fungi that attack insects are present in soils worldwide, and they are used in gardens, greenhouses, and open fields to control agricultural pests.
真菌主要是在土壤环境中开始对昆虫的攻击，在花园，温室以及户外，人们经常采用真菌来控制农业害虫。
3
Phytoseiid mites is the important predatory natural enemy of many injurious mites and small injurious insects, which has the important utilization value in agricultural production.