Seed Priming of Rice Varieties with Decoyinine Improve Their Resistance against the Brown Planthopper Nilaparvata lugens

The brown planthopper (BPH), Nilaparvata lugens Stål (Hemiptera: Delphacidae) is one of the most destructive rice pests in Asia. microbial metabolite decoyinine (DCY) has been extracted from Streptomyces hygroscopicus. Recent studies have suggested that treating seeds with DCY could improve growth and yield rice. To further assess effects priming different varieties on seedling resistance against BPH, an age-stage, two-sex life table choice test were applied to investigate individual fitness, population parameters, preference behavior BPHs this study. results indicated feeding seedlings grown primed significantly affected BPHs’ adult longevity, oviposition period, fecundity, as well net reproductive rate (R0), intrinsic increase (rm), finite (λ), doubling time (DT), size terms BPH. honeydew excretions weights fed DCY-pretreated plants remarkably lowered. two-way ANOVA also showed there significant differences biological excretions, BPH owing treatment, variety, interactions between treatment variety. Additionally, preferences for pretreated reduced. Our imply can which facilitate utilization seed a new avenue effective crop protection.