Many insects left “oviposition markers” on the surface of the eggs or at the egg laying site after oviposition. It was found that “oviposition markers” were chemical oviposition deterrents (OVD) produced by female...Many insects left “oviposition markers” on the surface of the eggs or at the egg laying site after oviposition. It was found that “oviposition markers” were chemical oviposition deterrents (OVD) produced by female adults,which deterred oviposition at the same sites by conspecific or heterospecific females. It was confirmed that the larvae of many insects could secret OVD. The species in Orthoptera,Lepidoptera,Coleoptera and Diptera could also produce OVD. Many documents confirmed that there were chemicals functioning as OVD in many kinds of plants. A set of techniques for studying OVD such as electrophysiological responses,behavioral responses,and isolation and identification of active compounds has now been developed. The OVD produced by females of Pieris rape,Lasioderma serricorne and Rhagoletis cerasi were identified and synthesized. The chemicals functioning as OVD of Pieris rape and Hylemya spp. were found in many plants. Controlling Rhagoleris cerasi with OVD was a typical example in the application of OVD. In addition,a new variety of cotton that could deter oviposition by females of Anthonomus grandis was also developed. OVD could also be used to study coevolutionary relationship between herbivore insects and plants. We think that study on OVD of insects plays a very important role in decoding the ovipositional behaviors of insects,co evoluationary relationship between herbiore insects and plants,and developing new types of pest insect controlling techniques.展开更多
Repellent and oviposition deterrent activities of the essential oil from Mikania micrantha and five volatile compounds including limonene, a-terpinene, linalool, B-caryophylene and verbenone on the diamondback moth (D...Repellent and oviposition deterrent activities of the essential oil from Mikania micrantha and five volatile compounds including limonene, a-terpinene, linalool, B-caryophylene and verbenone on the diamondback moth (DBM), Plutella xylostella, was investigated in door and in net-house. The results showed that the essential oil of the M. micrantha had significant repellant effect (at flow 100-180 mL/min) and oviposition deterrent activity at dose 1020 uL/seedling for the DBM. In five volatile compounds, a-terpinene, limonene and linalool had significant effect on repellent and oviposition deterrent of the DBM moths, but verbenone and B-caryophylene, no significantly effect was observed in repellent and oviposition deterrent.展开更多
文摘Many insects left “oviposition markers” on the surface of the eggs or at the egg laying site after oviposition. It was found that “oviposition markers” were chemical oviposition deterrents (OVD) produced by female adults,which deterred oviposition at the same sites by conspecific or heterospecific females. It was confirmed that the larvae of many insects could secret OVD. The species in Orthoptera,Lepidoptera,Coleoptera and Diptera could also produce OVD. Many documents confirmed that there were chemicals functioning as OVD in many kinds of plants. A set of techniques for studying OVD such as electrophysiological responses,behavioral responses,and isolation and identification of active compounds has now been developed. The OVD produced by females of Pieris rape,Lasioderma serricorne and Rhagoletis cerasi were identified and synthesized. The chemicals functioning as OVD of Pieris rape and Hylemya spp. were found in many plants. Controlling Rhagoleris cerasi with OVD was a typical example in the application of OVD. In addition,a new variety of cotton that could deter oviposition by females of Anthonomus grandis was also developed. OVD could also be used to study coevolutionary relationship between herbivore insects and plants. We think that study on OVD of insects plays a very important role in decoding the ovipositional behaviors of insects,co evoluationary relationship between herbiore insects and plants,and developing new types of pest insect controlling techniques.
基金Supported by the National Natural Foundation of China(39930120)Key Lab of Biopesticide and Biochemistry,Ministry of Educa-tion(Fujian Agriculture and Forestry University)(KF0409)
文摘Repellent and oviposition deterrent activities of the essential oil from Mikania micrantha and five volatile compounds including limonene, a-terpinene, linalool, B-caryophylene and verbenone on the diamondback moth (DBM), Plutella xylostella, was investigated in door and in net-house. The results showed that the essential oil of the M. micrantha had significant repellant effect (at flow 100-180 mL/min) and oviposition deterrent activity at dose 1020 uL/seedling for the DBM. In five volatile compounds, a-terpinene, limonene and linalool had significant effect on repellent and oviposition deterrent of the DBM moths, but verbenone and B-caryophylene, no significantly effect was observed in repellent and oviposition deterrent.