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Beauveria bassiana oil suspending agent and method for producing the same

A technology of Beauveria bassiana and oil suspension, which is applied in the directions of botanical equipment and methods, insecticides, biocides, etc., can solve the problems of short storage period of spores, time-consuming and laborious, incapable of mixing with water and spraying, etc. The method is simple, the source of raw materials is wide, and the field is convenient to use.

Inactive Publication Date: 2009-08-12
INST OF PLANT PROTECTION HEBEI ACAD OF AGRI & FORESTRY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its various formulations have their own advantages and disadvantages: the preparation method of powder is simple, but the storage period of spores is short, and it is necessary to use a duster or manually sprinkle or mix soil, and it cannot be sprayed with water, and the distribution of active ingredients is poor and the drug effect is slow. Disadvantages; oil agent is beneficial to prolong the survival period of spores, but it is suitable for mechanized operations, and it must be sprayed with an ultra-low-volume sprayer, which requires high spray equipment and is time-consuming and laborious, so it is not suitable for popularization; although wettable powders and suspensions are used Convenient, in line with routine medication habits, but there is a problem of short storage period of spores

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1, present embodiment is by 10.0% Beauveria bassiana spore powder, 4.0% EL-15, 4.0% pesticide emulsifier 2000, 2.0% agricultural milk 500#, 2.0% hydroxycellulose and 78% made of transformer oil. Beauveria bassiana spore powder, EL-15, pesticide emulsifier 2000, agricultural milk 500#, hydroxycellulose and transformer oil are added to the grinder according to the stated formula, and the ambient temperature during processing is not higher than 40°C. Grind at 1000-1500rpm for 5-10 minutes and mix well.

Embodiment 2

[0018] Embodiment 2, the present embodiment is greater than 100 billion / gram by the spore content of 15.0%, and the live spore rate is greater than 90%, and the Beauveria bassiana spore powder with water content less than 8%, the pesticide emulsifier 2000 of 2.0%, Made with 2.0% Sodium S-Alkyl Sulfate, 1% Carboxymethyl Cellulose and 80% Soybean Oil. Beauveria bassiana spore powder, pesticide emulsifier 2000, secondary alkyl sodium sulfate, carboxymethyl cellulose and soybean oil were added to the grinder according to the stated formula, and the ambient temperature during processing was not higher than 40°C. Grind at 1000-1500rpm for 5-10 minutes and mix well.

Embodiment 3

[0019] Embodiment 3, the present embodiment is made of 12.0% Beauveria bassiana spore powder, 5.0% agricultural milk A20, 5.0% pesticide emulsifier 2000, 1.0% sodium dioctyl succinate sulfonate, 2.0% % methylcellulose and 75% diesel. Beauveria bassiana spore powder, agricultural milk A20, pesticide emulsifier 2000, sodium dioctyl succinate sulfonate, methyl cellulose and diesel oil were added to the grinder according to the stated formula, and the ambient temperature during processing was Grinding at 1000-1500rpm for 5-10 minutes at a speed not higher than 40°C, and mixing evenly.

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Abstract

The present invention discloses a beauveria bassiana oil suspension agent which is composed of the following components by weight: 5-15% of beauveria bassiana spore powder, 2-12% of dispersing agent, 1-3% of stabilizing agent and 75-85% of inert mineral oil or vegetable oil. The beauveria bassiana oil suspension agent of the invention has the advantages of long storing period of spore and 80.8% of active spore rate after storing for 1.5 years. The adhesion rate of spore on the body surface of insect is increased. Furthermore the selected dispersing agent and stabilizing agent are extraordinarily safe to the crop and has no chemical injury. After water adding for dilution, the beauveria bassiana oil suspension agent has a transparent or semi-transparent emulsion through slightly mixing. The emulsifying is total and no tall oil, deposition or oil deposition deposits. The stability of beauveria bassiana oil suspension agent is excellent. The beauveria bassiana oil suspension agent accords with the routine medicine taking habit and further has the advantages of convenient use in field, simple preparing method, extensive raw material source of product, and suitability for large-scale production.

Description

1. Technical field [0001] The invention relates to a Beauveria bassiana preparation for controlling agricultural harmful insects and a preparation method thereof. 2. Background technology [0002] The existing Beauveria bassiana formulations include powder, oil, wettable powder and suspension. Its various formulations have their own advantages and disadvantages: the preparation method of powder is simple, but the storage period of spores is short, and it is necessary to use a duster or manually sprinkle or mix soil, and it cannot be sprayed with water, and the distribution of active ingredients is poor and the drug effect is slow. Disadvantages; oil agent is beneficial to prolong the survival period of spores, but it is suitable for mechanized operations, and it must be sprayed with an ultra-low-volume sprayer, which requires high spray equipment and is time-consuming and laborious, so it is not suitable for popularization; although wettable powders and suspensions are used ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N63/04A01N25/04A01P7/04
Inventor 曹伟平冯书亮王金耀王容燕杜立新宋健
Owner INST OF PLANT PROTECTION HEBEI ACAD OF AGRI & FORESTRY SCI
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