Tomato diseases, Issue 1479
Available from Communications Branch, Agriculture Canada, 1991 - Technology & Engineering - 70 pages
Diagnostic key. Causes of disease and prevention. Diseases caused by microorganisms. Environmental diseases and disorders. Index of diseases and disarders.
14 pages matching brown to black in this book
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affected appear areas bacterial canker bacterial speck bacterial spot bacterium become blossom-end rot blotchy ripening Botrytis cinerea British Columbia brown to black buckeye rot calcium Canada collar rot control measures corky root rot crop rotation cultivars damping-off dark brown discoloration disease is caused distorted early blight ﬁeld crops ﬁeld tomatoes ﬁrm ﬁrst foliage fruiting bodies fungi fungicide fungus fusarium crown Fusarium wilt gray mold grayish green greenhouse crops greenhouse tomatoes humid infected fruit infected plants iron deﬁciency late blight Leaf mold leaﬂets Lesions mottling mycoplasma nematodes pesticides petioles Pith necrosis plants show potato virus potato virus X provincial agricultural purplish sclerotia seed seedbed seedlings and transplants septoria leaf spot shoestring Soil rot sometimes spores spot disease spotted wilt spray spread sterilized soil streak stunted surface symptoms thrips tissue Tobacco etch tomato crops tomato mosaic virus tomato plants tomato yellows trisodium phosphate usually vascular veins viruses water-soaked weeds