作物病害歌谣(国外英文资料).docVIP

作物病害歌谣(国外英文资料) Crop disease ballad.Txt big sad is that they need to constantly make choices; the sad little people that they never had the opportunity to choose. Because of the vicissitudes of men and women from mature and mature, the vicissitudes of life. The man with the smoke, with wine, also have a story; women have money, have capital color, also have a tragedy. Seedling Damping off Seedling disease like caudex scalding, brownish yellow color change. Disease constricted shape line, cotyledon perishable high humidity. Primary individual lodging, lodging a serious. Seedling blight The incidence of more than middle seedling stem, dark brown spots. The lesion gradually expand the elliptical depression around the stem circle. The evening daytime listless, stem wet perishable. Finally, the contraction is dry, standing until death. Seedling root retting The roots of the rust brown color change, no new root rot quickly. Leaves pale yellow; no new leaf was wilting. Low temperature even Yin without light, excessive humidity is the precursor. Topping cucumber flower The vertex has been shortened internodes, male and female flowers in one point. The top leaf yield a guayang, very difficult. Cucumber fusarium Wilt The stem internodes yellow stripe, late recovery day fade. Department of disease longitudinal vascular flow glutinous, browning characteristics. Cucumber powdery mildew The positive and negative points to expand into a round white leaf, white spot. Warm and humid even, like foliage and surface. Late severe black spots and fragile leaf function. Cucumber angular leaf spot Angular leaf spot of downy mildew easily confused, fungal bacterial pre known. The lesion is in the shape of multi angle, large and small angle spot downy mildew. Downy mildew spot yellow brown, angular leaf spot light gray. The former leaves Beisheng blackberry, which leaves back white pus. Downy mildew spots dark without light, multi angle to bright spots. Cucumber downy mildew Leaves appear wa