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Diatomite-pine moth cytoplasmic polyhedrosis virus wettable powder

A technology of polyhedron and wettable powder, which is applied in the field of pesticides, can solve the problems of diatomaceous earth losing its efficacy, washing out, and unsatisfactory control effects, etc., to improve thermal storage stability, uniform and loose powder, and not easy to agglomerate caking effect

Inactive Publication Date: 2020-06-26
本生(惠州)生物技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when diatomite is used alone, the amount of diatomite is large, and diatomite does not have surface activity, and the lasting period is severely washed by wind and rain. Once the surface protection of plant leaves and other parts is lost, diatomite will lose its efficacy, and only in it Adding surfactants cannot achieve the goal of reducing volume and increasing efficiency
At present, due to the limitation of virus propagation technology, the use of viral insecticides is still limited. In order to reduce the control components, it needs to be used in combination with other original drugs. In addition, the death cycle of insects infected with pine caterpillar polyhedrosis virus is relatively slow. , generally 3 to 18 days or even longer
[0005] Although the two active ingredients have good insecticidal effects in theory, the control effect is not satisfactory when used alone. At present, with the development of agriculture and the enhancement of people's awareness of environmental protection, insecticides are non-toxic. Harmless, reducing dosage and increasing efficiency, has become an urgent task

Method used

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  • Diatomite-pine moth cytoplasmic polyhedrosis virus wettable powder
  • Diatomite-pine moth cytoplasmic polyhedrosis virus wettable powder
  • Diatomite-pine moth cytoplasmic polyhedrosis virus wettable powder

Examples

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preparation example Construction

[0048] The third aspect of the present invention provides the preparation method of the diatomaceous earth-pine caterpillar polyhedrosis virus wettable powder, comprising the following steps: adding the auxiliary agent in the preparation raw material into the container, and then adding the pine caterpillar Stir and mix the plasmotype polyhedrosis virus with it, then add the diatomaceous earth and vibrate to mix.

[0049] In the present invention, in order to avoid destroying the sawtooth structure of the diatomite, the diatomite is added later without mechanical crushing, and the diatomite can be mixed with other components by conventional shaking and stirring. When the auxiliary agent used is solid, put the auxiliary agent and pine caterpillar polyhedrosis virus in the preparation raw material into the container, carry out high-speed universal crushing, make it mix evenly, and reduce the fineness, and then add the silicon powder with sawtooth structure Alginate, shake it, tra...

Embodiment 1

[0053] This embodiment provides the joint toxicity determination of diatomite and pine caterpillar polyhedrosis virus compound to Spodoptera litura. The microstructure of the diatomite is a sawtooth structure, and the brand name purchased from the French Imerys company is Celite610 ,like figure 1 and 2 As shown, the pine caterpillar polyhedrosis virus is 30 billion PIB / gram pine caterpillar polyhedrosis virus, which was purchased from Wuhan Chuqiang Biological Co., Ltd. Dilute the concentration as needed.

[0054] Referring to the method in the NY / T1154.14-2008 standard, the method of soaking leaf discs is adopted. Use a hole puncher with a diameter of 18mm to punch the cabbage leaves into leaf discs, immerse the leaf discs in the test drug solution for 10 seconds, and put them into a petri dish (90mm in diameter) with a moisture-retaining filter paper, and put 6 discs in each dish. After the leaf discs are dried naturally, select the 3rd instar larvae of Spodoptera litura ...

Embodiment 2

[0057] This embodiment provides the joint toxicity determination of diatomite and pine caterpillar polyhedrosis virus compound to tea leaf inchworm. The microscopic structure of the diatomite is a sawtooth structure, and the brand purchased from the French Imeryste company is Celite610 ,like figure 1 and 2 As shown, the pine caterpillar polyhedrosis virus is 30 billion PIB / gram pine caterpillar polyhedrosis virus, which was purchased from Wuhan Chuqiang Biological Co., Ltd.

[0058] Referring to the method in the NY / T1154.14-2008 standard, the leaf soaking method is adopted. Select 3 buds of fresh tea trees, soak them in the test drug solution for 30 seconds, take them out to dry naturally, wrap the base of the buds with wet absorbent cotton to keep moisture, then seal the absorbent cotton balls with plastic wrap, put them in canned bottles, and The concentration was repeated 4 times. Then use a writing brush to insert lively and healthy 2nd instar nymphs of tea geometrids ...

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Abstract

The invention relates to the field of pesticides, and particularly relates to diatomite-pine moth cytoplasmic polyhedrosis virus wettable powder. The wettable powder at least comprises a pharmaceutical composition, a wetting agent, a dispersing agent and filler, wherein the pharmaceutical composition comprises diatomite and pine moth cytoplasmic polyhedrosis virus in a weight ratio of (1: 60)-(400: 1), the microstructure of the diatomite is of a sawtooth structure, the dispersing agent is alkyl naphthalene sulfonate formaldehyde condensate and glucose in a mass ratio of (1-3): 1, and the filler is preferably sodium alkyl naphthalene sulfonate. The diatomite-pine moth cytoplasmic polyhedrosis virus wettable powder provided by the invention solves the problems that the pine moth cytoplasmicpolyhedrosis virus takes effect slowly, the diatomite does not have surface activity and the like, and the powder is good in heat storage stability, uniform, loose, not easy to agglomerate and cake, easy to disperse and wet after being diluted with water, high in suspension rate and relatively good in infiltration spreadability on plant surfaces.

Description

technical field [0001] The invention relates to the field of pesticides, in particular to a diatomaceous earth-pine caterpillar polyhedrosis virus wettable powder. Background technique [0002] Diatomaceous earth is a kind of physical insecticide, its appearance is white powder, low density, porous, rough feeling, because each fine particle of diatomite powder has very sharp edges and thorns, when If insects crawl over and adhere to their body surface, they can pierce the pest's body surface, invade the pest's skin, and even enter its body. 4 times the weight of the pest's own water, causing the body fluid of the pest to drop sharply and die. In addition, diatomaceous earth will also absorb and destroy the waxy layer on the surface of the pest, causing the pest to dehydrate and die. Since diatomaceous earth uses mechanical methods to control pests, Therefore pests will not develop resistance to it. [0003] Pine caterpillar polyhedrosis virus is an important deadly microor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/08A01N63/40A01N25/14A01N25/30A01P7/04A01G13/00
CPCA01G13/00A01N25/08A01N25/14A01N25/30A01N63/00
Inventor 陈瑞明
Owner 本生(惠州)生物技术有限公司
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