86results about How to "Increase parasitic rate" patented technology

The invention provides an artificial propagation method for Anastatus spp. which comprises the steps of, (1) producing host ovum, (2) gathering and breeding bee variety, (3) sticking cards, (4) warming the Anastatus spp., (5) loading into boxes, (6) producing ovum and parasitic operation, (7) cultivating and growing, (8) quality checking, (9) low-temperature storage, (10) warming for growth, transporting or releasing.

The invention discloses a light environment control method for breeding trichogramma dendrolimi with oak silkworm eggs; the oak silkworm eggs on which the trichogramma dendrolimi are parasitical are adopted as parental eggs, and the fresh oak silkworm eggs on which nothing is parasitical are adopted as progeny eggs; the oak silkworm eggs are controlled to be under a purple light illumination condition; after a parasitic link is over, the parental eggs and the trichogramma dendrolimi are removed; the progeny eggs are placed under a red light illumination condition; after the growth and the eclosion of the trichogramma dendrolimi in the progeny eggs, the trichogramma dendrolimi can continue to serve as bees to repeat the process, so that the population is reproduced generation by generation, and finally a required number of trichogramma groups are finally obtained; and a biological-control finished product is processed. Due to the adoption of the light environment control method for breeding trichogramma dendrolimi with oak silkworm eggs, the parasitic rate of the trichogramma dendrolimi can be improved by 2.25 percent to 11.25 percent, the eclosion rate can be improved by 2.99 percent to 11.04 percent, and the number of identical bees and the legacy bee rate have no significant difference. In multi-generation breeding, the number values are further increased because the population is reproduced generation by generation.

The invention provides a method for breeding trichogramma pintoi indoors and corcyra cephalonica raising fodder. The corcyra cephalonica raising fodder comprises fodder A and fodder B, wherein the fodder A is composed of, by weight, 50 parts of rough wheat bran, 40 parts of corn flour, 10 parts of flour and 5 parts of water; the fodder B is composed of, by weight, 50 parts of rough wheat bran, 40 parts of corn flour, 5 parts of flour, 3 parts of fish meal, 2 parts of yeast powder and 5 parts of water. The method uses corcyra cephalonica eggs as intermediate hosts, formula fodder of corcyra cephalonica larvae at different periods is prepared by adopting a plurality of kinds of fodder, the corcyra cephalonica larvae are bred by the formula fodder so that emergence tidiness of adults can be achieved, the egg laying amount is high, and the mode that a boiling tube is connected in egg exposure is adopted for large-amount inoculation and breeding of the trichogramma pintoi. The method does not need a large device, breeding materials are simple and easy to obtain, operation is simple, practicality is high, environment is protected, pollution is avoided, the produced trichogramma pintoi can be used for biological control of a plurality of kinds of agriculture and forestry pests, and good economical, ecological and social benefits are obtained.