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 consist of both naturally derived and synthetic chemical substances. These types of pesticides are widely used in agriculture due to their effectiveness and relatively lower toxicity compared to traditional chemicals. They can be broadly divided into two main categories: natural organic pesticides and synthetic pesticides.
Natural organic pesticides are derived from natural sources such as plants, minerals, or microorganisms. They are generally more biodegradable and have a lower environmental impact. These pesticides are considered safer for human health and are often used in the production of eco-friendly, green, and organic foods. Examples include neem-based products, botanical extracts, and horticultural oils, which are effective against pests while being less harmful to beneficial insects and the environment.
Synthetic organic pesticides, on the other hand, are chemically manufactured and designed to target specific pests. They tend to have complex molecular structures and may persist longer in the environment. These pesticides are usually more potent but require careful handling and application. They are commonly classified into five main groups:
1. **Insecticides**: This category includes organophosphates, organochlorines, carbamates, pyrethroids, and other specialized insect control agents.
2. **Acaricides**: Used to control mites and ticks, these include both tin-containing and non-tin-based compounds.
3. **Fungicides**: Designed to prevent and treat fungal diseases, they encompass dithiocarbamates, benzimidazoles, sterol inhibitors, and more.
4. **Herbicides**: Targeting weeds, this group includes phenoxy acids, urea derivatives, amides, and other chemical formulations.
5. **Plant Growth Regulators**: These substances influence plant development and include auxins, gibberellins, and cytokinins.
It is important to use these pesticides responsibly to minimize environmental impact and ensure food safety. For more detailed information, you can refer to the China Pesticide Network.