Tomato Diseases, Issue 1479Tomatoes are the second most important vegetable crop in Canada, with a production area of over 15,300 ha, yielding 602,000 tonnes. This publication describes the causes of disease and the methods of prevention and presents detailed information on diseases caused by microorganisms and by environmental conditions. An index of disease and disorders is included, along with a diagnostic key. A description of each disease and methods of control are given. |
Common terms and phrases
affected appear areas Aucuba bacterial canker bacterial speck bacterial spot bacterium become blossom-end rot blotchy ripening Botrytis cinerea British Columbia brown to black buckeye rot calcium Canada catface control measures corky root rot crown and root cultivars damping-off dark brown discoloration disease is caused distorted early blight field crops field tomatoes foliage fruiting bodies fungicide fungus fusarium crown Fusarium wilt gray mold grayish green greenhouse crops greenhouse tomatoes humid infected fruit infected plants injury iron deficiency late blight Leaf mold Leaf roll leaflets Lesions Magnesium deficiency mottling mycoplasma nematodes pesticides petioles Pith necrosis plants show potato virus provincial agricultural purplish rot bacterial sclerotia seed seedbed septoria leaf spot shoestring Soil rot solani spores spot disease spray spread stem and leafstalks sterilized soil streak stunted sunken surface symptoms thrips tissue Tobacco etch tomato crops tomato mosaic virus tomato plants tomato yellows trisodium phosphate usually vascular veins viruses water-soaked weeds