Industrial production method for aphidius gifuensis products

Abstract

The invention discloses an industrial production method for aphidius gifuensis products. The method includes steps: step (1), purifying after natural culturing and rejuvenation of breeding aphids and breeding wasps; step (2), adopting large-aperture plug seedling cultivation of big seedlings for mass propagation of breeding aphids and breeding wasps; step (3), adopting small-aperture floating trays for cultivation of high-density tobacco seedlings to increase seedling amount in unit area, adopting special large-aperture wasp propagation floating trays for cultivation of strong tobacco seedlings and wasp propagation, and performing inoculation of the breeding wasps in a high proportion when the average aphid amount reaches a certain quantity; step (4), collecting and packaging aphidius gifuensis. By the industrial production method, the problem of epidemic diseases in high-density wasp propagation, the problem of basic facility insufficiency and problems of aphidius gifuensis formation uniformity, collection, storage and long-distance transport are solved; existing inflexible time limitation in wasp propagation and release is broken, a system aphidius gifuensis industrial production technique is formed, and the aphidius gifuensis products which meet industrial production requirements of availability for large-scale production, quality stability, long-term storage and convenience in long-distance transport are obtained.

Description

technical field [0001] The invention belongs to the technical field of insect rearing and pest biological control, and in particular relates to a method for industrialized production of aphids aphids. Background technique [0002] The name of the invention is a method for propagating Aphids persicae with floating seedlings" Chinese patent (application number: 201410399950.6), which discloses the use of 162-hole or 200-hole floating trays for full-pan sowing and floating seedling cultivation; during the seedling cultivation period, cut tobacco leaves once ; When the tobacco seedlings in the previous step grow to have 6 true leaves, connect the seed aphids to the tobacco seedlings to allow the aphids to spread and reproduce by themselves; when the number of aphids reaches about 150 heads / plant, the bee: aphid ratio is 1: 50% of the amount of bees received, the required stiff aphids and parasitic aphids of A. persicae are inserted into the cover net, and the adult bees are allo...

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Problems solved by technology

[0003] But after 2 years of actual popularization and application, the applicant found that: the problem of adopting the original plate direct-seeding seedlings to connect aphids and multiply aphids in this patent is that the size of the tobacco seedlings is uneven at first. The existence of seedlings takes up space and nutrients, so it cannot reproduce bees. In addition, although there are only about 100 effective seedlings per plate after natural death, the distribution is extremely uneven, which also seriously affects the level of bee reproduction in the entire plate.

The number of inoculated bees in the original patent application is 1:50. The problem is that due to the small number of bees, it takes a long time to reach the effective parasitic amount, resulting in extremely irregular formation of aphids. Failure to meet the requirements of the factory production of Aphidia sylvestris products for the uniformity of the aphid population;

The first problem is that long-distance transportation is extremely inconvenient

The traditional way of aphid seedlings is large in size, cannot be squeezed, and the effective utilization rate of space is low, resulting in high transportation costs; the second problem is that in case of irresistible natural factors, the aphid seedlings cannot be scattered in time, which will result in loss Serious; the third problem is that it is inconvenient for low-temperature transportation

A large number of aphids emerge during transportation, causing great waste

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