The effectiveness of 12 chemical compounds (azoxystrobin, carbendazim, chlorothalonil, fenarimol, folpet, mancozeb, myclobutanil + mancozeb, prochloraz + carbendazim, tebuconazole + triadimefon, tetraconazole + chlorothalonil, tiophanate-methyl, tridemorph + epoxiconazole) in the control of Puccinia horiana was tested on chrysanthemum cv. Fiji Yellow. Additionally, their influence on plant grow...

Walnuts (Juglans regia L.) are a major food crop in Beijing. Recently, walnut anthracnose has become serious problem plantations of Beijing, and the diversity pathogens that cause this disease is poorly understood, making targeted treatment difficult. This study investigated incidences seven districts Beijing (Changping, Fangshan, Haidian, Huairou, Mentougou, Miyun Pinggu). A total 377 isolates...

Thepresent study investigatedwhether amixtureof lowdosesoffiveenvironmentally relevant endocrinedisrupting pesticides, epoxiconazole, mancozeb, prochloraz, tebuconazole and procymidone, wouldcause adverse developmental toxicity effects in rats. In rat dams, a significant increase in gestation lengthwas seen,while inmale offspring increased nipple retention and increased incidence an...

Some chemicals are known to enhance the effect of other chemicals beyond what can be predicted with standard mixture models, such as concentration addition and independent action. These chemicals are called synergists. Up until now, no models exist that can predict the joint effect of mixtures including synergists. The aim of the present study is to develop a mechanistic toxicokinetic (TK) and ...

Um método alternativo, utilizando cromatografia líquida com detecção espectrofotométrica, para análise de procloraz como o produto de degradação 2,4,6-triclorofenol em manga, mamão e laranja é descrito. Acetato de etila, acetona e diclorometano foram testados para a extração de procloraz das frutas. Após a extração, procloraz foi submetido a uma reação com cloridrato de piridina para gerar o de...