Summary of the invention: the present invention will provide the application of a kind of paraffin oil composition in the control plant pest; It has efficiently, low toxicity, low-residual, and to pest natural enemy safety, use cost is low.
Technical scheme of the present invention is achieved in that said paraffin oil composition is mixed by paraffin oil and nimbin and forms.
Described paraffin oil composition is made up of 80~99% paraffin oil and 0.3% nimbin.
Described paraffin oil composition is to be formed in the mixed of weight portion by 5~1:1 by 80~99% paraffin oils and 0.3% nimbin.
Its carbon atom of described paraffin oil is C
21-C
25, paraffin content is greater than 70%, and cycloalkanes content is less than 30%, and aromatic compound is less than 1%.
Paraffin oil composition is applied to prevent and treat paddy rice and grape damage by disease and insect.
Said paraffin oil composition is applied to prevent and treat Pyricularia oryzae Cav, chilo suppressalis, and rice leaf roller, brown plant-hopper and control grape powdery mildew, anthracnose and black soya bean are sick.
Said paraffin oil composition is applied to prevent and treat oranges and tangerines, orange, shaddock and tealeaves damage by disease and insect.
Said paraffin oil composition is applied to prevent and treat canker, diplostomiasis, blister mite, two spotted spider mite and tea free scab, the insect pest of tealeaves goitre acariasis of oranges and tangerines, orange, shaddock class.
The present invention is that Main Ingredients and Appearance is equipped with nimbin emulsion with the paraffin oil, plant is especially had better effects to plant pests such as paddy rice, grape, orange, shaddock, oranges and tangerines, tealeaves, and have low toxicity; Low-residual; To pest natural enemy safety, compare with using chemical pesticide, can not develop immunity to drugs; Characteristics such as use cost is low, control efficiency reaches 80~95%.
The characteristic of paraffin oil: the paraffin oil that the present invention adopts is a food-grade paraffin wax oil, and its composition is at C
21-C
25Carbon atom in a narrow margin, contain paraffin greater than 70%, cycloalkanes is less than 30%, aromatic compound is less than 1%, non-sulfonated bodies reaches 99.9%, is applied on the crops safe and efficiently, its product can reach green AA level and organic standard; Nimbin has pest repelling, the food refusal effect.It can natural decomposition be CO that mixture of the present invention exposes under field conditions (factors)
2And H
2O, the mechanism of action is that it forms thin oil film at plant surface behind the present composition in the plant surface sprinkling; Isolation and obstruction insect sucking mouth parts and fungi bacterium have been blocked the change sense information between insect and the crop, because of the good fluidity and the autgmentability of the present composition to the intrusion of plant; Adhesivity and plate-out ability at plant surface are good, can penetrate wax coat and the chorion of insect, to valve, the pore sealing of insect, evil mite; The physics insect of suffocating is destroyed fungal cell wall, after insect is got food and contains the plant of medicine of the present invention; Can cause the tissue digestion of insect bad, appetite descends, the minimizing of laying eggs; Breeding is obstructed, thereby has reached the purpose of control plant pest.
Application process of the present invention: composition of medicine of the present invention is diluted spraying to water; To water concentration is 200~400 times of aqueous solution; Must not use alkaline aqueous solution to dissolve, require spraying careful evenly, avoid simultaneously at noon carrying out spray pesticide under time-division or the hot weather more than 35 ℃.
Embodiment: below in conjunction with specific embodiment to the present invention in paddy rice, the control of aspects such as grape, tealeaves, oranges and tangerines is with further describing.
Present composition embodiment 1
Ratio with 99% paraffin oil and 0.3% nimbin emulsion 5: 1 by weight ratio, 4: 1,2: 1 or 1: 1 is mixed with paraffin oil and nimbin fluid composition; Add during spray application and convert by weight ratio 200~400 times the aqueous solution and spray.
Application implementation example 1
The application of medicine of the present invention on damage by disease and insect such as control rice blast striped rice borer, rice leaf roller and rice fulgorid:
Experimental field: use pharmaceutical composition 99% paraffin oil of the present invention and 5: 1 by weight ratio mixed of 0.3% nimbin emulsion; The aqueous solution that the present composition that will mix according to the above ratio when using adds its 300 times of weight carries out diluted for use, dilutes by 1: 300 times concentration promptly that to make experimental group for use;
Control group: use A 48% Le Siben; B 40% triazophos emulsifiable solution; The C40% kasugarnycin; D clear water contrast CK: application process and usage amount are all undertaken by the operation instructions explanation.
Test place: organic paddy rice production base, Jiao Hu township, Wanzai County, Jiangxi Province;
Test period: 2004.7-2008.8 paddy rice implantation time;
Application process: the dispenser in early stage is taking place in rice blast; Rice leaf roller, striped rice borer, rice fulgorid are used at initial stage of origination.
Test is divided into 18 districts with 150 square metres of areas with it, and randomized arrangement tells experimental group and each 9 sub-district of control group experimentize.
Interpretation of result: the effect that the preventive effect of test dispenser after 7 days is respectively control rice blast experimental group is 82.3%, and is higher by 17.1% than 40% kasugarnycin; Result such as the following table 1 of control rice grub.
Group |
Preventive effect % |
Experimental group (the present invention) |
88.6 |
Control group A 48% Le Siben |
88.5 |
Control group B40% triazophos emulsifiable solution |
83.6 |
Control group clear water group |
CK is invalid |
Show employing present composition control rice pest, rice-stem borer, rice leaf roller from above result; And rice fulgorid is suitable with employing chemical pesticide preventive effect, but can not develop immunity to drugs with the present composition, can not injure natural enemy; Environmentally friendly, can be not residual in paddy rice and soil yet.
Application implementation example 2
Use the present invention and prevent and treat grape powdery mildew, anthracnose and anthrachose of grape damage by disease and insect
Experiment place: Yuanzhou District vineyard, Yichuan
Experimental period: the wine-growing time in 2004-2008, control grape powdery mildew, anthracnose and anthrachose of grape etc.
Experimental group: the present composition 99% paraffin oil and 0.3% nimbin emulsion are prepared by 5: 1,4: 1,1: 1 arbitrary proportion; Converting water 600 grams by every mu of 200ml above-mentioned composition solution when using sprays.
Control group: A, 40% carbendazim; B, 50% topsin; C, 75% tpn; D, 50% zineb.
Application process is: each group of experimental group and contrast all is at the grape their early stage leaf of grape, climing and fruit to be sprayed.
The usage of control group and consumption by specification carry out;
Experimental group is better at the premorbid spray effect of grape young fruit period.、
Interpretation of result: (table 2)
Group |
Preventive effect % |
Experimental group |
96.9 |
Control group A 40% carbendazim |
78.2 |
Control group B50% topsin |
66.3 |
Control group C50% tpn |
50.5 |
Control group D50% zineb |
60.7 |
See that from The above results employing present composition control efficiency is best.
Application implementation example 3
Prevent and treat canker, diplostomiasis, two spotted spider mite, the blister mite of oranges and tangerines, orange, shaddock, the damage by disease and insect of aleyrodid with the present composition;
Test place: Deqing, Guangdong and Xinyu City oranges and tangerines production base, Jiangxi;
Experimental group: present composition paraffin oil and 0.3% nimbin are by 5~1: 1 arbitrary mixed is used.Usage and consumption dilute 200 times by 200 milliliters every mu, i.e. spray after 200 milliliters of the present invention of every mu of usefulness convert 200 times of water.
Control group: 75% tpn, the usage and dosage by specification carries out;
Interpretation of result: (table 3)
Group |
Preventive effect % |
Experimental group |
86.75 |
Control group 75% tpn |
52.2 |
One is only to spill and gets final product for 3-4 time when adopting the above-mentioned damage by disease and insect of present composition control oranges and tangerines, orange, shaddock; And the chemical pesticide that uses control group needed more than ten medicine of spray in 1 year; Because two spotted spider mite was taken place generation more than 20 in 1 year, spray medicine cost is much higher than the use present composition, and can not develop immunity to drugs; Environmentally safe, reach the green organic standard of AA.