From 17-18 Nov., 2012, Botanical Pesticide Industrial Technology Alliance 2012 was held in
. At the
meeting, the Plant Protection College of Southwest University reported the
innovation and industrialization of botanical acaricide. A newly developed
variety extracted from Artemisia annua L. and turmeric (two herbs) was
presented–scopoletin. This product's common name is a result of the national
standardization of pesticides in 2012, according to CCM’s “Insecticides
China News” issued in January 2013. Southwest
According to the Institute for the Control of Agrochemicals, Ministry of Agriculture (ICAMA), no scopoletin products have obtained the registration in
as of 8
Jan., 2013. China
For a long time, the control of phytophagous mites mainly depended on chemical acaricides, so the resistance of mites has become more and more serious. At the same time, overuse of chemical pesticides has destroyed the ecological environment.
Chemical acaricides are harmful to the environment and have a negative impact on important natural enemies. They take a long time to decompose as they are complex synthetic compounds that don't exist in nature. Therefore, extracts from living creatures have great advantages over synthesized chemicals in relation to the environment.
The Plant Protection College of Southwest University discovered that mite feeding is selective, and many plants contain a natural active ingredient to resist mite feeding. So these plants can be developed into acarcides. And there are resource advantages and broad prospects in researching and developing botanical acaricides.
According to a study on 40 herbs, Artemisia annua L. and turmeric have high potential for development. At present, acaricides using Artemisia annua L. as raw materials include 5% Artemisia annua L. ME, 0.5% scopoletin ME and 10% scopoletin•amitraz SC.
In summary, biological acaricides have great potential. They have many advantages over agrichemicals, but are limited by their intrinsic defects. These defects manifest in the following respects.
Firstly, the activity of the active ingredients is not stable. They are secondary plant metabolites, vulnerable changes of the environmental conditions (for example temperature, humidity, illumination, the pH value of the soil, nutrition of the soil and ecosystem, etc.), so therefore their stability is poor. Furthermore, the source of Artemisia annua L. is limited geographically, which causes difficulties in production.
Source from Insecticides
News 1301 China
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