Early fungicides

Henriksen B and Elen O (2005), Natural Fusarium grain infection level in wheat, barley and oat after early application of fungicides and herbicides , J. Phytopathol., 153, 214-220. 

Maneb 486 (Figure 25) is an ethylene bis-dithiocarbamate (EBDC) fungicide used in agriculture for the control of early and late blights in potatoes and tomatoes, as well as many other diseases in fruits, vegetables, field crops, and... 

In 1974, federally recommended procedures were published under authority of the 1972 amendments of the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) that addressed pesticide disposal (2). These recommendations identified an incinerator operating at 1000°C (1832°F) with 2-s retention time in the combustion zone as acceptable for destruction of organic pesticides. Other incinerators, such as those for municipal solid waste capable of effecting complete pesticide destruction, are also acceptable. During this same time frame, i.e., from the early 1970s to date, a number of research and demonstration studies have been conducted involving pesticide incineration. Most of these concern either the identification of incinerator... 

Mycelial growth is more sensitive to cymoxanil than early growth phases, including the release of zoospores from sporangia and their germination. Cymoxanil inhibits nucleic acid and protein synthesis in some fungi but may have to be activated to induce a fungicidal response. 

This book examines the chemistry and mode of action of herbicides, insecticides, fungicides and plant growth regulators. It follows crop protection strategies from early discoveries to the present day, emphasising the biochemical targets of the compounds discussed. 

A number of organophosphorus esters are fungicidal, but structurally they have little in common. Triamiphos (65) (B-77MI10707), an early systemic fungicide, incorporates the bis(dimethylamino)phosphoryl moiety, but the activity of pyrazophos (66) (B-77MI1708) is almost certainly due to the pyrazolo[l,5-a]pyrimidin-2-one parent. Ditalimfos (67) (65BEP661891) is a foliar fungicide of very low mammalian toxicity. 

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