Андрей Васильев писал(а): Хотелось бы уточнить по препарату БИ-58.
Если о БИ-58 Новый который Диметоат/ Dimethoate, о его токсичности есть такое заключение:
"Conclusions
Unlike organochlorine pesticides, OPs such as dimethoate do not persist in the environment. Instead, their problem lies in their health effects on humans and other organisms. There is little concrete evidence regarding the chronic effects of dimethoate, for example on its carcinogenicity, however its acute effects on the nervous systems of humans and wildlife have been widely observed. Even though safer alternatives to OP insecticides are available, dimethoate still remains one of the most widely used insecticides in the world. Further safer alternatives should be developed, and an alternative approach based on the encouragement of natural pest enemies widely adopted. (HM)"
http://www.pan-uk.org/pestnews/Actives/dimethoa.htm
http://pmep.cce.cornell.edu/profiles/ex ... e-ext.html "
По контролю клещей груши вот что сказано:
http://www.ipm.ucdavis.edu/PMG/r603400611.html
http://www.ipm.ucdavis.edu/PMG/r603400511.html
http://www.ipm.ucdavis.edu/PMG/r603400211.html
http://www.ipm.ucdavis.edu/PMG/r603400411.html
http://www.ipm.ucdavis.edu/PMG/r603400311.html
И препаратам:
http://www.goodfruit.com/pear-mites-dev ... chemicals/
"The mites showed resistance to all but one:
Envidor, an ovicide and the most recently labeled of the six chemicals.
Onager and Zeal also are ovicides, the rest are adulticides. Among the five remaining chemicals where resistance is an issue, the level increased by statistically significant amounts — up to 127,000 times the resistance of a control group from Cornell University, reared for 15 years with no pesticide exposure at all.
The mites developed higher levels of resistance to the adulticides than to the ovicides. They showed the most resistance to Agri-Mek, not surprisingly the oldest of the six chemicals, used in pears since the late 1980s. In second came Acramite.
“Agri-Mek and Acramite are predicted to provide little control in the field,” Beers said, though Agri-Mek maintained some efficacy in a field near Yakima, where resistance was lower."