A kind of botanical pesticide composition containing azadirachtin and eucalyptus oil
A technology of botanical pesticides and compositions, applied in the directions of plant growth regulators, botanical equipment and methods, animal repellents, etc., to achieve the effects of reducing chemical pesticide residues, better efficacy, and better efficacy
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Embodiment 1
[0014] Example 1: Indoor Toxicity Determination of Azadirachtin, Eucalyptus Oil, Peppermint Oil and Their Different Proportions to Plutella xylostella
[0015] 1. Tested insects: 3rd instar larvae of diamondback moth (Plutella xylostella). Collect the mature larvae of Plutella xylostella on suburban cabbage in Nanning, Guangxi to the insect culture room, collect the formed pupae into a petri dish lined with moisturizing filter paper, and collect the pupae formed on the same day. When the hatched larvae were fed with cabbage seedlings to the third instar, the larvae with the same size were taken for testing. The breeding temperature is 25±2°C, the relative humidity is 50%-70%, and the photoperiod is 16L:8D.
[0016] 2. Test method: use dipping method. Prepare each drug solution to the required concentration, which is enough for the test. Cut fresh cabbage leaves that have not been sprayed with any chemicals and have no insect eggs into a size of 3cm×3cm, soak them in the pre...
Embodiment 2
[0022] Embodiment 2: The emulsifiable concentrate preparation of 3.3% azadirachtin · eucalyptus oil · peppermint oil
[0023] Take by weight percent nimbin 0.3%, eucalyptus oil 2.0%, peppermint oil 1.0%, alkylphenol polyoxyethylene ether 3.5% (wetting agent), calcium dodecylbenzenesulfonate 1.5% (emulsifier ), ethanol 20% (solvent), xylene (solvent) to make up to 100%, each component is added in the reaction kettle in turn, stir evenly, promptly make the botanical pesticide of 3.3% azadirachtin · eucalyptus oil · peppermint oil Cream preparations.
[0024] This embodiment is applied to the prevention and control of cruciferous vegetable diamondback moth. The test site is the cabbage field in Zhenxing Village, a suburb of Nanning City, Guangxi. Conventional foliar spray is used for uniform control, and the leaves are wet. Eucalyptus oil and peppermint oil were dissolved in ethanol to prepare 5% eucalyptus oil preparation and 3% peppermint oil preparation; 5% eucalyptus oil pre...
Embodiment 3
[0029] Embodiment 3: the microemulsion formulation of 6.5% azadirachtin · eucalyptus oil · peppermint oil
[0030] Weigh azadirachtin 0.5%, eucalyptus oil 4.0%, peppermint oil 2.0%, N-methylpyrrolidone (solvent) 1.5%, sodium dodecylbenzenesulfonate (emulsifier) 3.5% by weight percentage, three Styrylphenol polyoxyethylene oxide propylene ether (emulsifier) 2.5%, the above components are completely dissolved and mixed evenly, deionized water is added to 100%, and 6.5% azadirachtin·eucalyptus is obtained under high-speed stirring Microemulsion preparation of leaf oil·peppermint oil.
[0031] Eucalyptus oil and peppermint oil are dissolved with ethanol, prepared into 5% eucalyptus oil preparation and 5% peppermint oil preparation, the microemulsion preparation of 6.5% azadirachtin · eucalyptus oil · peppermint oil is used as test agent, with 5% Eucalyptus oil preparation and 5% peppermint oil preparation were used as control agents to control tomato bollworm. A total of 5 t...
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