A kind of overwintering conservation and breeding method of aphid

Abstract

The invention discloses a Myzus periscae overwintering breed conservation breeding method including the following steps of: (1) performing collection, detoxification, purification and renovation on Myzus periscae, and obtaining robust and disease-free Myzus periscae; (2) inoculating the Myzus periscae on fresh radish sprouts or green vegetable sprouts in a glass greenhouse for breeding in November every year; (3) inoculating the Myzus periscae which is on the fresh radish sprouts or green vegetable sprouts onto tobacco flowers in the glass greenhouse in February of the second year, and breeding the Myzus periscae on the tobacco flowers for 10-15 days; and (4) inoculating the Myzus periscae which is on the tobacco flowers onto bottom leaves of tobacco plants in a plastic shed and performing expanding propagation on the Myzus periscae. According to the invention, the tobacco flowers are used as transitional hosts. The tobacco flowers are the parts of the tobacco plants with the lowest nicotine content. The tobacco flowers contain honeydew, and attract the Myzus periscae to eat, and thus the activity and fertility of the Myzus periscae can be ensured. After the method of the invention is used, the survival rate of the Myzus periscae inoculated onto the tobacco leaves is raised to 70% from 10% in the prior art. The egg laying amount, after the Myzus periscae is inoculated with aphidius gifuensis for 7 days, is 60-70 times of the egg laying amount in the prior art.

Description

technical field [0001] The invention belongs to the technical field of preventing and controlling the aphid aphid, and in particular relates to a method for overwintering conservation and breeding of the aphid. Background technique [0002] At present, the control of Aphids persicae has achieved good results, achieving the purpose of "controlling insects with insects". Aphids persicae is the natural enemy of Aphids persicae, which is the host of Cssia persicae. When mating and laying eggs, Aphidia persicae lays eggs in the body of A. persicae, which develops into adults by eating the viscera of A. persicae, so as to kill the persimmons and achieve the purpose of eliminating pests. [0003] In the popularization and application of the control of Aphids persicae, it is necessary to breed a large number of C. aphid. A known patent application (patent application number: 201110024746.2) proposes a method for overwintering conservation and breeding of aphids, the method compri...

AI Technical Summary

Problems solved by technology

But this method has the following disadvantages: (1) the core of this method is to need to control the temperature 22 ± 5 ℃ in the greenhouse, humidity 50-70%, this condition can only rely on the area below 0 ℃ or 0 ℃ in the minimum temperature in winter. The heating and humidification equipment is realized, and the power supply cannot be guaranteed in remote mountainous areas, and it is difficult to ensure the temperature and humidity; (2) Radish seedlings and green vegetable seedlings do not contain nicotine. Composition changes, it is very easy for aphids to not feed, not reproduce, low activity, or even die, resulting in failure of overwintering species conservation