Performance of oleander aphid (Aphis nerii Boyer de Fonscolmbe) and large milkweed bug (Oncopeltus fasciatus Dallas) on 21 species of Asclepias was evaluated in a two-year field study. Season-long pest and beneficial insect population growth was monitored. Plant quality ratings also were obtained. Relative numbers of Monarch butterfly (Danaus plexippus (Linnaeus)) larvae were also recorded. All...

Abstract Insecticides applications are one of the components to control brown planthoppers pest that applied in large scale by farmers. In field, some farmers mix different active ingredients insecticides planthoppers. This study was aimed find out efficacy mixed plant hoppers and effect on natural enemies field. The research carried Pemalang Regency, Central Java, 2016/2017 rice planting seaso...

In order to discover novel eco-friendly compounds with good activity for aphid control, (E)-β-farnesene (EβF), the main component of the aphid alarm pheromone, was chosen as the lead compound. By introducing a 2-nitroimino-hexahydro-1,3,5-triazine moiety (abbreviated NHT) to replace the unstable conjugated double bond system of EβF, a series of novel EβF analogues containing the NHT moiety were...

Brown planthopper (BPH), Nilaparvata lugens (Stål) (Hemiptera: Delphacidae) is an economically important insect pest of rice crop worldwide including Pakistan. The use chemicals insecticides to control the BPH population has been considered effective strategy. However, long-term and intensive resulted in resistance against this pest. In study, six recommended were tested over period 2015-2019 d...