Method for preventing rice planthopper of paddy rice
A rice planthopper and rice technology, applied in the agricultural field, can solve problems such as no relevant reports, and achieve the effects of delaying the development of resistance, reducing adverse effects, and improving control effects
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0015] Example 1: Indoor Toxicity Determination of Pymetrozine, Methyl Jasmonate and Their Mixtures to Rice Brown Planthopper
[0016] Test object: rice brown planthopper (Nilaparvata lugens (Stal)): collected from Nanning, Guangxi, and reared the second generation indoors.
[0017] Test method: refer to the "People's Republic of China Agricultural Industry Standard NY / T 1154.11-2008", using the rice stem dipping method. Pull out the strong rice plants from the tillering stage to the early booting stage, wash them, cut them into 15 cm long rooted rice stems, and put them in a group of 3 plants, and dry them in a cool place until there is no water mark on the surface. Soak the rice stems in the diluted medicine for 30 seconds, take them out and dry them, wrap the roots with soaked absorbent cotton and put them into the culture cups, absorb the 3rd instar mid-stage nymphs and put them into the culture cups, 20 heads per cup, set the soaking Clear water was used as the blank con...
Embodiment 2
[0029] Embodiment 2: 30% pymetrozine methyl jasmonate suspension concentrate
[0030] Formula: Weigh 25% of pymetrozine, 5% of methyl jasmonate, 2.0% of alkylaryl polyoxypropylene polyoxyethylene ether (dispersant), 3.5% of sodium polynaphthaldehyde sulfonate (wetting agent) , ethylene glycol 2.5% (antifreeze agent), xanthan gum 0.8% (thickener), silicone 0.3% (defoamer), and deionized water to make up to 100%.
Embodiment 3
[0031] Embodiment 3: 10.5% pymetrozine methyl jasmonate suspension concentrate
[0032] Formula: Weigh 10.0% of pymetrozine, 0.5% of methyl jasmonate, 1.8% of alkylaryl polyoxypropylene polyoxyethylene ether (dispersant), 3.5% of sodium polynaphthaldehyde sulfonate (wetting agent) , ethylene glycol 1.5% (antifreeze), xanthan gum 0.8%, 0.3% silicone defoamer, deionized water to make up to 100%.
[0033] The preparation method of Examples 1-3 is as follows: mix each component uniformly according to the ratio of the formula, grind and high-speed shear to obtain the composition containing pymetrozine·methyl jasmonate, and the dosage form is a suspension concentrate.
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com