Green energy-saving wheat aphid prevention and control technology

A wheat and aphid technology, applied in the field of plant protection, can solve the problems of slow progress in research on wheat aphid-resistant breeding, lack of aphid-resistant varieties, lag, etc., achieve significant economic and social benefits, protect and utilize natural enemies, and improve the benefit-to-harm ratio. Effect

Inactive Publication Date: 2011-05-25
INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI
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AI Technical Summary

Problems solved by technology

However, the research work on wheat aphid-resistant breeding has progressed slowly, resulting in a passive situation of long-term shortage of aphid-resistant varieties in production.
Natural natural enemies have a significant control effect on wheat aphids, but there is an obvious hysteresis effect, that is, the obvious control effect appears only when the population of wheat aphids has caused serious losses in the late blooming stage

Method used

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  • Green energy-saving wheat aphid prevention and control technology
  • Green energy-saving wheat aphid prevention and control technology
  • Green energy-saving wheat aphid prevention and control technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Selection of hair dryers. Through the use of commonly used pest control equipment in production: knapsack motorized duster (Dongfanghong WFB-18G, produced by Beijing Fengmao Plant Protection Machinery Co., Ltd., address: No. 1 Yanqi Industrial District, Huairou District, Beijing. The same below), knapsack Motorized sprayer (Dongfanghong 3WB-15X, Beijing Fengmao Plant Protection Machinery Co., Ltd.), knapsack manual sprayer (Dongfanghong DFH-16A, Beijing Fengmao Plant Protection Machinery Co., Ltd.) and backpack manual mist blower (Beijing Fengmao Plant Protection Machinery Co., Ltd. ), etc. It can be seen from the test results (Table 1) of different power gears of the wind force (wind speed) at a distance of about 30cm from the blowing outlet of the equipment and a range of 60cm blowing diameters. or sprayer) there is a difference in wind power. Among them, the tested knapsack motorized duster (Dongfanghong WFB-18G) has a relatively large wind force, a wide range of co...

Embodiment 2

[0042] Wind test of different power gears of motorized duster. Through the 6 different power gears (throttle control gears) of the knapsack motorized duster (Dongfanghong WFB-18G, produced by Beijing Fengmao Plant Protection Machinery Co., Ltd., address: No. 1 Yanqi Industrial District, Huairou District, Beijing), The wind force test results (Table 2) at a distance of about 30cm from the blower outlet of the equipment and a blowing diameter range of about 60cm in front of the face show that the wind force (wind speed) of the powder sprayer increases with the increase of the gear. Among them, the average wind speed of the 5th gear and the 6th gear reaches the wind force level of strong wind and high wind respectively, and the 7th gear and the 8th gear reach the wind force level of strong wind and strong wind respectively.

[0043] Table 2. Comparison of wind power of different power gears of motorized duster

[0044]

Embodiment 3

[0046] Selection of the power gear (appropriate blowing intensity) for the blowing operation of the motorized powder sprayer. Utilize the knapsack-type motorized duster (model, manufacturer, with embodiment 2) to carry out the field test (implementation place: Langfang City, Hebei Province, Langfang pilot base of Chinese Academy of Agricultural Sciences; Wheat The variety is "Zhonghan 101", and the seeds are from the production variety of the base, which is aphid-sensitive variety). There are 4 plots (repeated 4 times) for each treatment stall, the air outlet of the equipment is 20-30cm away from the wheat, and the treatment time is 1 minute / m 2 . The test results are shown in Table 3. There are significant differences (P<0.05) in the control effect of air blowing at different power levels (throttle control gear) on wheat aphids. The decline rate of aphids increased, and the control effect was enhanced.

[0047] At the same time, three gears of 5 to 7 were carried out (that...

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Abstract

The invention relates to a using technology for controlling wheat aphid damages by utilizing a blowing measure. In the invention, wind power generated by a motorized duster is used for carrying out physical interference on wheat aphids to cause direct impact harms to the wheat aphid without using any chemical pesticide or chemical substances, biological drugs and water so as to reduce the aphid density on wheat plants, increase the predator to prey ratio (i.e. the quantity ratio of natural enemies to the wheat aphids) and achieve the purpose of controlling the damages of the wheat aphids to the wheat. Proved by field measurement, the prevention and control effect of the technology on sitobion avenae can reach higher than 85 percent, and compared with a chemical prevention and control technology frequently used in production at present, the technology has the advantages of cost saving (drugs or water is not used) and no pesticide pollution and can sufficiently play a role of controlling the aphids by utilizing the natural enemies in the field; and meanwhile, the technology also has the advantages of convenience for use, working hour saving, easiness of popularization and application, direct conversion to productivity and obvious economic, ecological and social benefits.

Description

technical field [0001] The invention belongs to the field of plant protection, and in particular relates to a green energy-saving prevention and control technology for controlling wheat aphid damage by blowing air. technical background [0002] Wheat is the second largest food crop in my country. Wheat aphid is a major pest in wheat production, and its occurrence area and damage loss are on the rise. Since the 1990s, the annual occurrence area of ​​wheat aphids in China has increased from 3.42 million ha in 1972 2 Rapidly increased to 18.38 million hm in 1999 2 , and its occurrence area has become the third major crop disease and insect pest in my country (after rice planthopper and rice sheath blight). In the 1990s, the actual losses caused by wheat aphids accounted for the first of the major wheat pests after vigorous control, with an average annual loss of more than 700,000 tons of wheat (832,000 tons and 827,000 tons in 1995 and 1999, respectively). After entering th...

Claims

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Application Information

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IPC IPC(8): A01G13/00
CPCY02P60/12
Inventor 尹姣曹雅忠李克斌王冰袁会珠曹煜
Owner INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI
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