Pesticides combined with Aschersonia aleyrodis and Azadirachtin
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A whitefly conchosporium and insecticide technology, which is applied in the field of pesticides, can solve the problem of not finding the whitefly conchosporium and azadirachtin, and achieves strong infestation and insecticidal effect, reduces pesticide residues, and has no environmental pollution. The effect of pollution
Inactive Publication Date: 2010-12-08
SOUTH CHINA AGRI UNIV
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No relevant compound insecticides of A. whitefly and Azadirachtin have been found so far
Method used
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[0016] Part A is 60% A. whitefly conidia suspension: 60% A. whitefly A. whitefly conidia powder is dissolved in 0.21M phosphate buffer and 10% glycerin mixture, pH7.0 . Store at 4-8°C.
[0017] Part B is wettable powder: azadirachtin (commercially available) 0.1%, Tween-8020%, sodium lignosulfonate 6%, wetting agent LX 4%, add pottery clay to make up to 100%.
[0018] Part A and Part B each account for 50%, and the two parts are directly mixed to obtain a 30% A. whitefly Azadirachtin suspension concentrate, and the mass ratio of A. whitefly:Azadirachtin is 100:0.167. The results of the toxicity test are shown in Table 1.
Embodiment 2
[0019] Embodiment 2: 50% Azadirachtin oil of A. whitefly (diluted 2000 times)
[0020] Whitefly Ascospora powder (10 10 Individual / g) 50%, azadirachtin 0.1% (commercially available), Tween-805%, paraffin oil 23%, methyl green 2%, add diatomaceous earth and make up to 100%, make 50% whitefly seat Azadirachtin oil. Wherein, the mass ratio of A. whitefly: Azadirachtin is 100:0.2. The results of the toxicity test are shown in Table 1.
Embodiment 3
[0021] Embodiment 3: 60% Azadirachtin oil of A. whitefly (diluted 2000 times)
[0022] Whitefly Ascospora powder (10 10 pc / g) 60%, azadirachtin 0.05% (commercially available), methyl green 2%, Tween-805%, paraffin oil 23%, kaolin supplemented to 100%, and 60% of A. Neem oil. Wherein, the mass ratio of Sokospora whitefly powder: azadirachtin is 100:0.083. The results of the toxicity test are shown in Table 1.
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Abstract
The invention discloses a combination pesticide of aschersonia aleyrodis webber and azadirachtin, comprising 30 to 60 percent of host crystal and 40 to 70 percent of adjuvant according to mass percent, the host crystal is the mixture of aschersonia aleyrodis webber and azadirachtin, the mass ratio of the aschersonia aleyrodis webber and the azadirachtin is 100: 0.05 to 0.25; the adjuvant is stabilizer, addition agent and filler. The invention discloses that the combination pesticide of aschersonia aleyrodis webber and azadirachtin is processed into wettable powder, suspending agent or medicinal oil. By adopting the blending of agricultural chemical and biopesticide with sub-dose, the combination pesticide of the invention reduces the consumption amount of azadirachtin and the residual amount of agricultural chemical, meets the production demands of organic foods, has no pollution and residue to environment, and is beneficial to deferring the generation of drug fastness of pests. Proved by experiments, the combination pesticide of the invention especially has good control effects on pests such as whitefly and aphis, etc.
Description
technical field [0001] The invention belongs to the technical field of pesticides, and specifically relates to a microbial insecticide, in particular to an environmentally friendly, pollution-free and residue-free compound insecticide of Ascospora whitefly and azadirachtin. Background technique [0002] Aschersonia aleyrodis Webber is an entomopathogenic fungus, as a living biopesticide, it has a new mechanism of action different from existing chemical insecticides, has no pollution to the environment, and has no residue. As an alternative control drug to control some insects resistant to Bt, it is of great economic significance to develop and utilize A. whitefly. The whitefly, Ascospora, is widely distributed and has a good control effect on the piercing-sucking mouthparts such as aphids and whitefly, and has a good application prospect. [0003] Azadirachtin (azadirachtin) is recognized as the most important insect in the world, which has antifeedant, stomach poisoning, c...
Claims
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Application Information
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