Tomato blight

Tomatoes Blight Phytophthora infestans Bordeaux mixture, copper ammonium carbonate, copper oxychloride, copper sulphate + sulphur... 

The reactions of diamines with carbon disulfide in the presence of alkali afford a useful synthetic route to the ethylenebisdithiocarbamates (6) (see p. 148). Several of these compounds, such as the manganese salt maneb (7), are important fungicides, especially for the control of potato and tomato blight.3... 

These compounds are used to control downy mildews, potato and tomato blight and are noted for their very low mammalian toxicities. 

Disease-resistant varieties are attractive because they should pose little or no risk to the environment and enable growers to reduce and in some cases eliminate the need for pesticides. In some host-pathogen systems, resistance may persist for many years, but in others it may be short-lived (Koike et al., 2000). Unfortunately, resistance is not available to counter every disease and for some of the most damaging ones, such as tomato late blight (P. infestans) and white rot (Sclerotium cepivorum) of alliums, no acceptable resistant varieties are currently available. 

Kotcon, J. B. and Murray, W.K. (2003). Efficacy of compost and compost tea for suppression of early blight in organically grown tomato , Phytopathology, 93 (6 Supplement), June S47. 

Zhinong, Y., Reddy, M.S., Ryu, C.M., Mclnroy, J.A., Wilson, M. and Kloepper, J.W. (2002). Induced systemic protection against tomato late blight elicited by plant growth-promoting rhizobacteria , Phytopathology, 92, 1329-1333. 

Jepson, Susan B. "Fact Sheet on Late Blight of Potato and Tomato." Oregon State University Extension Service, 2005. 

Ricci MS, De Almeida DL, Ribeiro RD, Aquino AM, Pereira JC, Polli D, Reis VM, Eklund CR (2000) Cyperus rotundus control by solarization. Biol Agric Hort 17 151-157 Rieger M, Krewer G, Lewis P (2001) Solarization and chemical alternatives to methyl bromide for preplant soil treatment of strawberries. HortTechnology 11 258-264 Ristaino JB, Perry KB, Lumsden RD (1991) Effect of soil solarization and Gliocladium virens on sclerotia of Sclerotium rolfsii, soil microbiota, and the incidence of southern blight in tomato. Phytopathology 81 1117-1124... 

Bulluck LR, Ristaino JB (2001) Effect of synthetic and organic soil fertility amendments on southern blight, soil microbial communities and yield of processing tomatoes, soil microbial communities and yield of processing tomatoes. Phytopath 92 181-189 Bulluck LR, Barker KR, Ristaino JB (2002) Influences of organic and synthetic soil fertility amendments on nematode trophic groups and community dynamics under tomatoes. Appl Soil Ecol 21 233-250... 

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... 

The most important foliage diseases of tomatoes are the early and late blights that also attack potatoes. Because tomatoes are a warm country crop, early blight... 

The biological activity and heat in a compost pile is so great that it can break down many plant diseases. Even so, it is probably wise not to add plants infected with very persistent diseases of vegetables such as clubroot and white rot. Potato and tomato foliage infected with potato blight can be safely composted. 

Remove self-set (volunteer) potato and tomato plants, which often spring up on compost piles they could be infected with blight. 

Mulches, both plastic and organic, can serve as a barrier against diseases that are spread partially by soil splashing onto plants. Early blight and buckeye rot of tomatoes are examples. Mulches will not eliminate these diseases, bnt may delay their onset and eventual severity. Organic mulch applied around tomatoes while the soil is still cool may delay ripening a few days, but black plastic mulch will warm the soil and speed ripening. 

Bulluck, L.R. and Ristaino, J.B. 2002. Effect of synthetic and organic soil fertility amendments on southern blight, soil microbial communities, and yield of processing tomatoes. Phytopathology 92 181-189. 

Gomez-Rodriguez, O, Zavaleta-Mejia, E., and Gonzalez-Hernandez, V. A. Livera-Munoz M., and Cardenas-Soriano, E. Allelopathy and microclimatic modification of intercropping with marigold on tomato early blight disease development. Field Crops Res 2003 83 27-34. 

Uses as fungicide to control early and late blights of potatoes and tomatoes anthracnose in cucurbits leaf spot diseases in many crops glume blotch of wheat also used on vegetables, ornaments, berry fruits, melons, coffee and tobacco, etc. 

Uses as fungicide to control late blights of potatoes and tomatoes downy mildews of hops, vines, lettuce, onions, soybeans and other crops many diseases in flowers and ornamentals and often used in combination with other fungicides, etc. 

Fluopicolide [217] is a Bayer CropScience fungicide for the control of oomycete diseases such as downy mildew, damping-off, and late blight in vegetables, cucumber, tomatoes, cereals, and coffee. 

Control of mildew, potato and tomato late and early blights, wheat leaf and glume blotch and barley net blotch in grape, potato, tomoto, wheat, barley... 

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