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Water dispersible granule (WDG) for fall webworm NPV (nuclear polyhedrosis virus) and preparation method thereof

A technology of American white moth and dispersing granules, applied in the fields of botanical equipment and methods, pesticides, biocides, etc., can solve the problems of high technical requirements and high cost, save inventory space, small equipment scale, and good fluidity Effect

Inactive Publication Date: 2011-04-27
INST OF FOREST ECOLOGY ENVIRONMENT & PROTECTION CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] At present, the main disadvantage of water dispersible granules is the high cost of development and high technical requirements.

Method used

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  • Water dispersible granule (WDG) for fall webworm NPV (nuclear polyhedrosis virus) and preparation method thereof
  • Water dispersible granule (WDG) for fall webworm NPV (nuclear polyhedrosis virus) and preparation method thereof
  • Water dispersible granule (WDG) for fall webworm NPV (nuclear polyhedrosis virus) and preparation method thereof

Examples

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preparation example Construction

[0039] The preparation method of the American white moth NPV (nuclear polyhedrosis virus) water dispersible granules of the present invention is as follows figure 1 As shown, the specific steps are as follows:

[0040] a) Calculate and prepare the Hyphantria vulgaris NPV virus liquid and various inactive substances according to the proportioning amount. The inactive substances are: one or two of EFW wetting agent and W200 wetting agent; D-425 dispersing agent , At least one of D-110 dispersant, D-1000 dispersant and NP powder; at least one of diatomaceous earth carrier, kaolin carrier or light calcium carbonate carrier;

[0041] The stated proportion is: the virus content in the Hyphantria cunea NPV virus solution is 1×10 7 PIB / g-1×10 10 PIB / g; the components of the inactive substance and the weight percentage content of each component are: wetting agent, 0.5%-15%; dispersant, 0.5%-15%; adhesive, 0%-0.5% ; Carrier, margin;

[0042] b) Adsorb and dry the white moth NPV virus liquid w...

Embodiment 1

[0062] EFW 5%

[0063] D-425 5%

[0064] Carrier kaolin 89%

[0065] Ammonium sulfate 0.5%

[0066] Starch 0.5%

[0067] White moth NPV virus content 4.5×10 9 PIB / g

Embodiment 2

[0069] EFW 9%

[0070] D-110 9%

[0071] Carrier kaolin 81%

[0072] Ammonium sulfate 0.5%

[0073] Starch 0.5%

[0074] White moth NPV virus content 4.5×10 9 PIB / g

[0075] Since the selection and combination of various parameters are endless, the above-mentioned embodiments are for reference only, and the above-mentioned embodiments can be changed in some ways without departing from the scope of the present invention. Therefore, the above description includes and shown in the drawings. It should be regarded as illustrative and not intended to limit the scope of protection of the patent application of the present invention.

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Abstract

The invention provides a water dispersible granule (WDG) for fall webworm NPV (nuclear polyhedrosis virus). The WDG is synthesized by utilizing quantitative fall webworm NPV liquid and quantitative inactive substances, wherein, the content of the fall webworm NPV is 1*10<7>PIB (polyiso-butylene) / g<-1>*10<10>PIB / g; the inactive substances comprise the following components in percentage by weight: 0.5%-15% of wetting agent, 0.5%-15% of a dispersant, and the balance of carrier; in addition, an adhesive can be also added, wherein, the added amount of the adhesive is 0.1%-0.5% of the total weight of the inactive substances; and the adhesive comprises one or more than two of starch, carboxymethyl cellulose and xanthan gum. The preparation method of the WDG comprises the following steps: calculating and preparing the fall webworm NPV liquid and the inactive substances according to proportion; adsorbing the fall webworm NPV liquid with the carrier and drying; and mixing the carrier adsorbed with the NPV liquid with the inactive substances, crushing, adding water and granulating to finally obtain the finished product. The WDG for the fall webworm NPV provided by the invention is beneficial to application of the fall webworm NPV at all times, and the WDG remains suspended after dispersion; and the WDG has the advantages of no dust pollution and less damage to human body when in use, good flowability and good storage stability, and is free from caking and sticking to walls.

Description

Technical field [0001] The invention relates to an American white moth NPV (nuclear polyhedrosis virus) virus water dispersible granule and a preparation method thereof. Background technique [0002] The American white moth (Fall webworm), also known as "Autumn Curtain Caterpillar", "Autumn Curtain Moth", and "American Lamp Moth", belongs to the Lepidoptera order and belongs to the family Lampyridae. It is a worldwide quarantine pest. Harm fruit trees, road trees and ornamental trees, etc. The American white moth has a very strong reproductive capacity, which can spread two to three generations a year, and the spreading route is relatively wide, which causes the damage range to expand. Every year, prevention and control are more difficult. If the white moth is not controlled in time, it will cause a large area of ​​pests and seriously affect forestry and agriculture. [0003] Traditional American white moth control is mainly chemical pesticides. Chemical pesticides have the ch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N63/00A01N25/14A01P7/04
Inventor 张永安王玉珠
Owner INST OF FOREST ECOLOGY ENVIRONMENT & PROTECTION CHINESE ACAD OF FORESTRY
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