Mango deporaus marginatus pascoe attractant and preparation method thereof

Abstract

The invention discloses a mango deporaus marginatus pascoe attractant and preparation method thereof. The attractant is prepared through taking liquid paraffin as a solvent and mixing the following components with the equal mass: 100 microgram / ml of valencene, Beta-geraniolene, terpinolene, Beta-caryophyllene, aromadendrene, Alpha-farnesene and (1R)-(+)-Alpha-pinene and trans-2-hexenal. The attractant is a special component screened out from host plants, and has the characteristics of long function effect and strong goal orientation, and meanwhile, the attractant induces the deporaus marginatus pascoe adults to quickly enter a target trapping area and keeps the deporaus marginatus pascoe adults from escaping from a target trapper, the trapping lasting period reaches 20 days above, so that the probability of the deporaus marginatus pascoe adults to mating and spawning in the natural environment is greatly reduced, and the female and male deporaus marginatus pascoe adults can be trapped and killed together, as a result, the attractant is of great significance in the reduction of the field population quantity of the mango deporaus marginatus pascoe, improvement of control efficiency of the mango deporaus marginatus pascoe, and the development of green, safe and sustainable pollution-free technologies.

Description

technical field

[0001] The invention belongs to the technical field of biological control of fruit tree pests, and in particular relates to an attractant for mango cut-leaf weevil and a preparation method thereof. Background technique

[0002] mango( Mangifera indica Linn.) Leaf-cut weevil ( Deporaus marginatus Pascoe), also known as mango leaf-cutting weevil, belongs to Lepidoptera Noctuidae. It is the main pest of mango young leaves. The generation overlap is serious. Both male and female adults feed on mango young leaves, especially the female adults are accompanied by leaf cutting during the process of laying eggs. behavior, affecting the growth of mango trees. In view of the increasing resistance of mango leaf cutting weevil, there is still no efficient and environmentally friendly control method, the control effect of traditional agricultural control is limited, and it is easy to pollute the environment (Kumawat M M, Singh K M. Population dynamics and management o...

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