Rectangle Ductile
gratings are made of ductile iron; we make cast iron gratings on BS EN124 2015.
The products are A15, B125, C250 and D400, They are used in Green belt,
Pavement, Auxiliary road, Main road and Express way. We make Ductile Gratings
all by producing line, the quality cast iron gratings is very good, and we
warmly welcome customers all over the world to do business with us.
Gratings, Ductile Gratings, Ductile iron gratings, cast iron gratings Runchun Casting (Zhoushan) Co., Ltd. , https://www.en124casting.com
What are the classifications of organic pesticides?
Organic pesticides can be broadly categorized into natural and synthetic types. Natural organic pesticides are derived from natural sources and are generally considered safer for the environment and human health. These substances dissolve well in water and tend to have lower toxicity, making them a preferred choice for producing pesticide-free, green, and organic foods. Examples include plant-based insecticides and horticultural oils.
Synthetic organic pesticides, on the other hand, are chemically manufactured and often have more complex molecular structures. They are typically neutral in pH and may break down easily under strong acidic or alkaline conditions. These pesticides require careful handling and are often used in combination with other products for better effectiveness. There are five main categories of synthetic organic pesticides:
1. **Insecticides**: This group includes organophosphates, organochlorines, carbamates, pyrethroids, and specific insecticides designed for targeted pest control.
2. **Acaricides**: These are used against mites and include both tin-containing and non-tin-based compounds.
3. **Fungicides**: Common types include dithiocarbamates, decanoimides, benzimidazoles, diimides, and sterol biosynthesis inhibitors, which help prevent fungal infections in crops.
4. **Herbicides**: These are used to control weeds and include phenoxycarboxylic acids, diazonium benzenes, substituted urethanes, and various other chemical classes such as amides, benzoic acids, and dinitroanilines.
5. **Plant Growth Regulators**: These chemicals influence plant development and include auxins, gibberellins, and cytokinins, which are used to enhance growth, flowering, and fruiting.
This information was originally published by the China Pesticide Network, providing valuable insights into the classification and use of organic pesticides in modern agriculture. Understanding the differences between natural and synthetic options helps farmers make informed decisions that balance effectiveness with environmental and health considerations.