Prevention and control method for tobacco aphids

A technology for tobacco aphids and aphids, which is applied in the field of tobacco aphid prevention and control, can solve the problems of single control method for tobacco aphids and cannot effectively control the occurrence and spread of tobacco aphids, and achieves good effects, good economic benefits, and reduced morbidity. Effect

Inactive Publication Date: 2015-10-28
昆明日晟农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a control method for tobacco aphids, which solves the problem that the existing co...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] A control method for tobacco aphids, comprising the following steps:

[0049] 1. Agricultural prevention and control:

[0050] (1) Rationally apply nitrogen fertilizer, appropriately increase potassium fertilizer, and avoid excessive growth of tobacco plants. Fertilization is specifically: 2-2.5kg of pure nitrogen fertilizer per mu for high-fertilization fields, and the weight ratio of N, P, and K is 1:3.5:4; Apply 3-3.5 kg of pure nitrogen fertilizer per mu in the fertile field, and the weight ratio of N, P, and K is 1:2.5:3. High-fertility fields refer to available nitrogen fertilizer content of 81-100mg / kg, and available nitrogen fertilizer refers to quick-acting nitrogen content of 60-80mg / kg.

[0051] (2) Timely topping and wiping can be done,

[0052](3) Capping and pruning branches in good time, chemical bud suppression, described chemical bud suppression adopts 36% Zhongbuling emulsifiable oil, diluted 80-100 times, cup spraying method application,

[0053] (...

Embodiment 2

[0071] Basically the same as in Example 1, the dosage of Woyiduo per mu is 150ml of HYT-A, 300ml of HYT-B and 100g of HYT-C.

[0072] Compared with the control method of the comparative example, the incidence of aphids in the tobacco field using the control method of this embodiment is reduced by more than 80%, the quality of the tobacco leaves is better than that of the comparative example, and the yield is increased by more than 30% compared with the comparative example.

Embodiment 3

[0074] Substantially the same as Example 1, the difference is that every mu land uses 400ml of Difulai tobacco fertilizer,

[0075] The dosage of Woyiduo per mu is 200ml of HYT-A, 350ml of HYT-B and 80g of HYT-C.

[0076] Compared with the control method of the comparative example, the incidence of tobacco aphids in the tobacco field adopting the control method of this embodiment is reduced by more than 70%, the quality of the tobacco leaves is better than that of the comparative example, and the yield is increased by more than 30% compared with the comparative example.

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PUM

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Abstract

The invention relates to a prevention and control method for tobacco aphids. The prevention and control method comprises the following steps: firstly, agricultural prevention and control; secondly, ecological management; thirdly, biological control; fourthly, biological prevention and control; fifthly, physical prevention and control; and sixthly, chemical prevention and control. A Aphidius gifuensis Ashmaed breeding biological control method is adopted for releasing and controlling the tobacco aphids in tobacco fields, the biological agent of 200 g/l imidacloprid wettable solution is adopted and 4000 times of water is added for mist spraying on the front and back faces of tobacco leaves, and a solution formed by diluting the chemical agent of 25 g/l deltamethrin missible oil by 1500 times is adopted for performing mist spraying on the tobacco aphids, so that the average incident rate of the tobacco aphids is reduced, the yield is increased, the tobacco level is obviously improved, and a good economic benefit is achieved.

Description

technical field [0001] The invention relates to a method for preventing and treating tobacco aphids, belonging to the technical field of plant protection. Background technique [0002] Tobacco, Latin scientific name: Nicotianatabacum. Tobacco is an important economic crop. Tobacco is an annual herbaceous plant in the family Solanaceae, and there are about 60 species of Nicotiana. Also known as peach aphid, commonly known as greasy insect, it is the most important pest that occurs in tobacco fields, and it is seriously harmful. The damage of aphids in the field is divided into two forms: direct damage and indirect damage. The direct damage is to use its piercing (needle-like) mouthparts to suck the juice of young tobacco leaves, and at the same time secrete a sweet and sticky honeydew to pollute the tobacco leaves. Tobacco leaf sooty disease is induced, the surface of tobacco leaves is blackened, and the quality of tobacco leaves is reduced; the indirect damage is the spre...

Claims

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Application Information

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IPC IPC(8): A01G13/00A01G1/00
CPCA01G13/00A01G22/00
Inventor 李美琼李佩龙
Owner 昆明日晟农业科技有限公司
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