Abstract: A nucleotide sequence is shown in SEQ ID NO.1. The gene encodes mannosyltransferase I. The gene plays an important role in the normal reproductive development of the Nilaparvata lugens (Stål). Inhibition of the function of the gene may reduce the survival rate of the Nilaparvata lugens (Stål) and hinder embryonic development. With respect to reduction of the survival rate of the Nilaparvata lugens (Stål) and hindering of embryonic development, the present invention can reduce the harm of the Nilaparvata lugens (Stål) to rice by killing the Nilaparvata lugens (Stål). By using the characteristic that the nucleotide sequence of a highly conserved target gene has no homology with the nucleotide sequence of natural enemies of the Nilaparvata lugens (Stål), RNA interference is performed at a nucleic acid level, to avoid the harm to non-target organisms such as natural enemies, thereby realizing green control of the Nilaparvata lugens (Stål) while controlling pests.

Abstract: A nucleotide sequence is shown in SEQ ID NO.1. The gene encodes mannosyltransferase I. The gene plays an important role in the normal reproductive development of the Nilaparvata lugens (Stål). Inhibition of the function of the gene may reduce the survival rate of the Nilaparvata lugens (Stål) and hinder embryonic development. With respect to reduction of the survival rate of the Nilaparvata lugens (Stål) and hindering of embryonic development, the present invention can reduce the harm of the Nilaparvata lugens (Stål) to rice by killing the Nilaparvata lugens (Stål). By using the characteristic that the nucleotide sequence of a highly conserved target gene has no homology with the nucleotide sequence of natural enemies of the Nilaparvata lugens (Stål), RNA interference is performed at a nucleic acid level, to avoid the harm to non-target organisms such as natural enemies, thereby realizing green control of the Nilaparvata lugens (Stål) while controlling pests.

Abstract: A TPR1 gene related to a low-temperature tolerance of Pomacea, coding protein and application of the gene is disclosed. The disclosure belongs to the field of biotechnology. The present disclosure is rapid, effective and reproducible, and is an important complement to the TPR1 gene family. Pomacea is an important invasive organism, the disclosure is helpful for developing novel biological pesticide, and the low-temperature tolerance of the organism is reduced by blocking the expression of TPR1 gene in Pomacea, so as to control the further northward invasion of Pomacea. Meanwhile, by interfering with the expression of TPR1 gene, the hatching rate of Pomacea eggs can be significantly reduced, and the hatching period of eggs can be prolonged, thereby reducing the harm of Pomacea invasion.

Abstract: A compound plant-derived molluscicide for controlling Pomacea canaliculata and a preparation method and application thereof are disclosed. The compound plant-derived molluscicide is prepared from following raw materials in proportion by weight: 40-45% of water extract of Solidago canadensis L. leaves, 45-50% of water extract of Lantana camara L. roots, 0.1-0.2% of active ingredient stabilizer, and 0.1-0.2% of preservative; and a balance is ultrapure water. The disclosure has rich raw material resources, low cost, good molluscicidal effect, sustained and stable efficacy, non-toxic effect on freshwater fish, and meets the requirements of environmental protection.