CN1317246B - Agricultural chemical 'Daowenling' preparation - Google Patents

Abstract

The invention discloses an agricultural preparation "Daowenling" which not only can be used for manual sprinkling, but also can be dripped in the water surface and automatically spread on the water surface and climb along the plant. The preparation contains components A and B. The component A is prepared by uniformly mixing the 10.0-60.0 wt% of Daowenling active component and 30-90.0 wt% of solid or liquid carrier material, then adding emulsifying agent, developer, developing auxiliary agent, and penetrating agent. The component B is prepared by mixing the emulsifying agent, the developer and the developing auxiliary agent. The component A can be used alone or combined with B. The invention has drug performance of rapidly and effectively controlling rice blast bacterium, granule sclerotinia rot and aphid, leafhopper or the like.

Description

A kind of agricultural chemical ' Daowenling ' preparation

The invention provides and a kind ofly both can be used for artificial sprinkling, can splash into the water surface again and launch and climb the agricultural chemical ' Daowenling ' preparation that covers automatically along plant at the water surface.

In recent years, American-European and Japan has delivered many patent and papers about water surface leafing agent.These patents and paper only limit to the research of solid granular leafing agent, can be divided into following a few class substantially: (1) does carrier with the water-soluble solid material, after medicament imposes in the water, this water-solubility carrier dissolves rapidly, and promote active component and spread at the water surface in company with the residual carrier material, as JP60142901, JP813090; (2) do carrier with the shipwreck dissolved matter, apply one deck hydrophober and be aided with solvent, make granula floating and be scattered in the method for the water surface automatically, as JP481181, JP471240, JP49242225, JP45966205, JP5826882 etc. at carrier surface; (3) do carrier with the mixture of slightly water-soluble material and water-soluble substances, when this granule imposed in the water, rapid dissolving of this water-soluble substances and promotion were bubbled through the water column attached to the pesticide activity component on the slightly water-soluble material and are spread, as CN88102168; (4) 96101003.7 of Chinese patent application have been introduced a kind of liquid water surface leafing agent, and said preparation can directly splash into the water surface and diffusion rapidly, and enter in the plant body through scattering and permeating, thereby play the effect of control plant damage by disease and insect.Mainly there are following defective in above preparation and application process: when doing carrier as (1) with the slightly water-soluble material, to having relatively high expectations of carrier material, dissolution velocity must be very fast, otherwise be difficult to promote former medicine diffusion.If before soil surface, dissolve fully, then can cause the availability decline of former medicine to the suction-operated of agricultural chemicals because of soil particle at particles settling; (2) do carrier with slightly water-soluble porous adsorbent, then can reduce the availability of former medicine to the suction-operated of pesticide activity component because of carrier material; (3) after water-soluble substances is molten entirely, can easily can not floated the water surface, can only be dispersed in the water body, make active component can't in time be released to the water surface owing to particle becomes by water-wet; (4) above preparation all is confined to use in water body, can't use when the lack of water of rice field, and in addition, these preparations also require to keep in the rice field a certain amount of water of certain hour when using, otherwise will have a strong impact on the result of use of agricultural chemicals; (5) conventional formulations such as pulvis, missible oil, colloidal suspending agent, suspending agent can only adopt the mode dispenser of artificial sprinkling, the same with the floating autgmentability pesticidal preparations of the water surface, insecticide-applying way is single, efficiency is low during the conventional formulation dispenser, and the drug effect of the floating autgmentability pesticidal preparations of the water surface then is subjected to the field water quantitative limitation.

The objective of the invention is deficiency at existing pesticidal preparations existence, a kind of restriction that promptly is not subjected to insecticide-applying way is proposed, can rapidly active component be administered on the plant again, fast and effeciently prevent and treat the multi-functional agricultural chemical ' Daowenling ' preparation of damage by disease and insect such as Pyricularia oryzae, sclerotium oryzicola and aphid, leafhopper.

For reaching the above purpose of row, the present invention adopts above technical scheme to be: (1) is mixed into the homogeneous system with Isoprothiolane active component 10.0-60.0wt% and solid-state or liquid carrier material 30-90.0wt% under 30-80 ℃; (2) and then in above-mentioned isotropic body is add emulsifier 1-20.0%, solvent 0.1-10.0wt% launches auxiliary agent 0-5.0wt%, bleeding agent 0-5.0wt%, and the control temperature mixes into the homogeneous system at 30-50 ℃; (3) adjust active constituent content, moisture≤0.5% and pH value 5-7 promptly make component A; (4) with emulsifier 1-20.0wt%, solvent 1-10.0wt% launches auxiliary agent 0-8.0wt%, bleeding agent 0-5.0wt%, and be mixed into the homogeneous system and promptly get B component; (5) component A both can use separately, also can be used in combination with B component.

Solid-state carrier material of the present invention is meant easily dissolubility solid matter such as ammonium salt, sylvite, sodium salt, urea; Liquid carrier is meant slightly solubility organic matters such as acetonitrile, dichloroethane, n-hexane, gasoline, cyclohexane, toluene, dimethylbenzene.Emulsifier is meant cationic surfactant, anion surfactant, non-ionic surface active agent, the amphoteric surfactant of HLB value between 5-20.Solvent is meant that the HLB value is at solid-state or liquid anion surfactant, non-ionic surface active agent, amphoteric surfactant more than 8.Launch auxiliary agent and be meant ammonia salt, alcohols, metallic salt etc.

Preparation provided by the present invention both had been different from conventional formulations such as pulvis, missible oil, colloidal suspending agent, suspending agent, be different from again can free-floating in water surface, pesticide activity component wherein can by evapotranspire and to the infiltration of plant and conduction and effectively control live on the water surface or the above plant of the water surface on the floating autgmentability pesticidal preparations of the water surface of pest, pest on plant has special-effect than conventional formulation and application method near the water surface or the water surface to living in for it.

The present invention has the following advantages: prevent and treat efficient height, instant effect 1.; 2. both can be used for artificial sprinkling, and can directly drip again, be sprinkled into the water surface and diffusion automatically, and got development rate at the water surface and can reach 0.05--0.30m/s, distributed fast evenly at the water surface; 3. can climb along plant and cover the biology on the direct killing plant; 4. preparation is not subjected to the plant strain growth environmental limit, and no matter the water yield all can be used, and insecticide-applying way can be adjusted as the case may be; 5. no matter still all have impayable advantage of conventional formulation and application prospect in the very high place of mechanization degree in the labor intensive area.

Embodiment 1:

(1) at first with the former medicine 20.0g of Isoprothiolane, toluene 75.0ml heats with electric jacket, and the control temperature is stirred to into the homogeneous system rapidly at 40-80 ℃;

(2) disposable adding OP-10 3.0ml, amylalcohol 1.0g high-speed stirred under reflux condensation mode becomes the homogeneous system to liquid;

(3) rice blast flexibility constituent content is to 20.0wt% in the adjustment liquid, and pH value is between 6-7, and moisture is filtered and promptly got component A below 0.1wt%;

(4) Tween-80 80.0g and Span-80 20.0g are stirred into the homogeneous system, adjust moisture and below 0.1wt%, promptly get B component.

After splashing into component A in the water, this component can spread along the water surface, and can prevent and treat damage by disease and insect such as Pyricularia oryzae, sclerotium oryzicola and aphid, leafhopper effectively by its osmosis.If with component A and B component with weight ratio be mix at 9: 1 after, both available atomizers spray and directly being applied on the plant.

Embodiment 2:

(1) at first with the former medicine 200.0g of Isoprothiolane, potassium chloride 750.0g pulverizes and mixes with cracker;

(2) odium stearate 32.0g, neopelex 18.0g are mixed after, evenly be sprayed in (1) prepared mixture, and use the comminutor granulation, control particle diameter at 0.5-2.0mm.

After being sprinkled in the water, said preparation can dissolve and discharge the Isoprothiolane active component rapidly, this active component spreads along the water surface rapidly under the promotion of odium stearate and neopelex, and can climb along plant and cover 0.2-5.0cm, infiltrate through in the plant corpus and can effectively prevent and treat damage by disease and insect such as Pyricularia oryzae, sclerotium oryzicola and aphid, leafhopper.If said preparation is dissolved in the water available again atomizers spray.

Embodiment 3:

(1) at first with the former medicine 20.0g of Isoprothiolane, add dimethylbenzene 75.0g, in the three-necked bottle of packing into, heated and stirred is to the homogeneous system;

(2) in above-mentioned homogeneous system, add OP-10 3.0g, ethanol 2.0g, high-speed stirred to system is the homogeneous system under reflux condensation mode;

(3) adjust solution Central Plains medicine content to 2.0wt%, moisture≤0.1wt%, pH value are 6.5, filter promptly to get component A;

(4) with Tween-80 70.0g, calcium stearate 10.0g, dodecyl APEO 20.0g stir into the homogeneous system, adjust moisture below 0.1wt%, promptly get B component.

This component can spread along the water surface after splashing into component A in the water, and can prevent and treat damage by disease and insect such as Pyricularia oryzae, sclerotium oryzicola, leafhopper, plant hopper effectively by its osmosis.If with component A and B component with weight ratio be mix at 9: 1 after, both available atomizers spray and directly being applied on the plant.

Claims (1)

1. agricultural chemical ' Daowenling ' preparation is characterized in that: with Isoprothiolane active component 20wt%, and solid-state material potassium chloride 75wt%, emulsifier odium stearate 3.2wt%, solvent neopelex 1.8wt% is mixed into the homogeneous system, moisture≤0.5% and pH value 5-7.