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Zucchini yellow mosaic virus (ZYMV) is an aphid-borne potyvirus, regarded as a major pathogen of cucurbits in most regions of the world where these crops are cultivated. ZYMV affects all cucurbits including pumpkins , squashes , [ 1 ] vegetable marrows , courgettes , melons , watermelons , cucumbers , gherkins and various gourds especially ...
Hot and dry conditions in the summer cause the fungus to become inactivated and the leaf spots to turn white and crusted. [11] During the summer, the diseased leaves fall leaving only the healthy ones on the partially defoliated trees. This provides a natural control for the disease. [5] The disease also mainly infects young leaves in the ...
Leaves are exstipulate, alternate, simple palmately lobed or palmately compound. The flowers are unisexual , with male and female flowers on different plants ( dioecious ) or on the same plant ( monoecious ).
White toenails can take time to treat, Dr. Wofford emphasizes, “I remind my patients that any treatment or intervention will take six to nine months to yield results due to the slow nature of ...
What Causes Good Greens To Go Bad. Unlike what the post suggests, leafy greens aren’t a major source of ethylene.But they are sensitive to produce that emits the gas. That’s why you should ...
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C. argyrosperma has ovate-cordate (egg-shaped to heart-shaped) leaves. The shape of C. pepo leaves varies widely. C. moschata plants can have light or dense pubescence. C. ficifolia leaves are slightly angular and have light pubescence. The leaves of all four of these species may or may not have white spots. [8]