A kind of aphid biological control method using wheat seedlings and straw aphid as storage carriers

Abstract

The invention discloses an aphid biological control method with barley and Sitobion avenae as storage carriers. The method comprises the steps that A. barley reproduction is carried out, wherein after barley seeds are subjected to sterilization and deinsectization, a culturing medium is used for barley reproduction; B. Sitobion avenae reproduction is carried out, wherein Sitobion avenae is collected and sent into barley for culturing reproduction; C. aphidiidae inoculation is carried out, the aphidiidae is collected and put into barley where aphid breeding is completed for culturing; D. field releasing is carried out, wherein barley with aphidiidae are placed between lines of crops; and E. carrier plant maintaining and replacing are carried out, wherein timing moisture supplementing and in-due-time barley replacing are carried out. The aphid biological control method with the barley and the Sitobion avenae as the storage carriers is easy to operate, low in cost and obvious in effect.

Description

technical field [0001] The invention relates to the field of pest control, in particular to a biological control method for aphids using wheat seedlings and aphids as storage carriers. Background technique [0002] Aphids belong to the family Aphididae of the order Homoptera. They are pests with piercing and sucking mouthparts. They often cluster on leaves, tender stems, flower buds, terminal buds, etc., and suck juice, causing leaves to shrink, curl, and deform. In severe cases, they cause branches and leaves to wither Even the whole plant dies. The aphid damage process can also spread viral diseases, resulting in crop yield reduction or disease death. In addition, aphids will secrete honeydew on the surface of plants while feeding, which can attract ants and induce diseases such as soot. [0003] At present, the control of aphids in production mainly relies on chemical insecticides, mainly neonicotinoid imidacloprid and acetamiprid. There are also agents such as aphid m...

AI Technical Summary

Problems solved by technology

[0006] First, the high frequency and large amount of chemical pesticides will increase the cost of agricultural production;

[0007] Second, the large and frequent use of pesticides will lead to the continuous increase of pest resistance and the gradual decline of the control effect;

[0008] Third, the extensive use of chemical pesticides will kill the natural enemies of various pests, leading to an increase in the occurrence of aphids and other agricultural pests and aggravating the damage;

[0009] Fourth, chemical pesticide residues are the primary issue of food safety and the main cause of agricultural non-point source pollution

[0011] First, the input cost is high: the cost of using insect-proof mesh isolation and applying silver-gray insect-proof mulch is relatively high. For example, the price of silver-gray insect-proof mulch is more than 10% higher than that of ordinary transparent mulch. The price is as high as 1 yuan per square meter;

[0012] The second is that the application effect is not good: taking the isolation of insect-proof mesh as an example, due to the small size of aphids, the mesh of less than 20 mesh must be used to achieve the isolation effect, but such mesh will affect the ventilation in the field and increase the humidity between plants and temperature, leading to the occurrence of plant diseases, affecting crop yield and agricultural product quality; although silver-gray insect-repellent mulch can play a certain role in avoiding aphids, it cannot replace the use of chemical pesticides

At the same time, this kind of mulch can neither transmit light like transparent film to increase low temperature, nor can it control grass and keep warm like black mulch, so farmers are generally reluctant to use it.

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