Semi-synthetic artificial feed for larvae of Hematoptera mangoi and its preparation method

Abstract

The invention belongs to the technical field of biological control of fruit-tree insect pests and discloses a semi-artificial feed for mango horizontal tail noctuid larva and a preparation method thereof. The feed comprises the following raw materials in parts by weight: 40-60 parts of pure water, 35-57 parts of main ingredient and 3-5 parts of auxiliary ingredient; the main ingredient is mixture of dried tender leaves, tender shoots and tender branches of mango which are mixed in a mass ratio of (2-4): (5-7) : (0.5-1.5); and the auxiliary ingredient is mixture of agar, ascorbic acid, glucose, methyl-p-hydroxybenzoate, potassium sorbate, formaldehyde, Webster's salt and complex vitamins. The feed overcomes defects of prior art that the mango horizontal tail noctuid can only be sampled in the field and can not be bred indoors. The feed has relatively reliable recipe and relatively simple breeding, so that necessary insect source support is provided for long-time and stable biological mechanism study and double-sex attractant development of the insect.

Description

technical field [0001] The invention belongs to the technical field of biological control of fruit tree pests, and in particular relates to a semi-synthetic artificial feed for mango cutworm larvae and a preparation method thereof. Background technique [0002] Mango cutworm ( Chlumetia transversa ) common name borer moth, borer, belongs to Lepidoptera Noctuidae. It is mainly distributed in Guangdong, Guangxi, Hainan, Yunnan, Fujian and Taiwan provinces in China, and it is also widely distributed in foreign mango producing areas such as Thailand and India. Due to the high economic value of mango, it has been planted in large quantities in recent years. The larvae of the mango cutworm eat the young shoots and flower spikes of mango, causing the shoots to die, and the top of the inflorescence to cluster or die, affecting the normal growth and production of fruit trees. According to a preliminary investigation, the damage rate of tender shoots is more than 35%, and the damag...

AI Technical Summary

Problems solved by technology

The present invention overcomes the defects that the mango cutworm needs to be sampled in the field and cannot be raised indoors, and provides a semi-synthetic artificial feed with relatively reliable formula, relatively simple feeding, relatively stable generation reproduction, and easy-to-obtain raw materials. ~2 instar) larvae and advanced age (3~5 instar) larvae are classified and raised according to their developmental stages, which solves the drawbacks of the previous sampling of the worm being limited by time and space and cannot be reproduced on a large scale, so that long-term and stable The in-depth research and application of the physiological and ecological characteristics and mechanism of this insect also provides the necessary insect source guarantee for further research on the bisexual attractant of the mango cutworm.

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