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Slime flux, also known as bacterial slime or bacterial wetwood, is a bacterial disease of certain trees, primarily elm, cottonwood, poplar, boxelder, ash, aspen, fruitless mulberry and oak. A wound to the bark, caused by pruning, insects, poor branch angles or natural cracks and splits, causes sap to ooze from the wound. Bacteria may infect ...
Fungal diseases; Common name: Scientific name: Plants affected: Alternaria leaf spot Alternaria panax: B, D, Fl, P,S Anthracnose Colletotrichum trichellum: H Cercospora leaf spot Cercospora spp. B, S Damping-off Pythium spp. B,Fj,S Gray mold Botrytis cinerea: H Phyllosticta leaf spot Phyllosticta concentrica. Discochora philoprina [teleomorph] H
Animal and insect vectors are another way in which fungal, bacterial and viral leaf spot diseases are spread. [2] Rainwater spreads pathogens by transporting infested soil into areas that are disease-free. Infested water can also be spread by way of irrigation or transplanting. Blowing rain can also spread fungi and bacteria. [2]
Fungal diseases; Common name: Scientific name: Plants affected: Alternaria leaf spot Alternaria alternata: C Fusarium root rot Fusarium oxysporum: C Helminthosporium leaf spot Bipolaris setariae Cochliobolus setariae [teleomorph] C, M
Mulberry can be grown up to 4,000 m (13,000 ft) above sea level. Mulberry blooms well in warm, rich, fertile, well-drained, loamy to clayey soils, porous with strong moisture-holding ability. The optimal soil pH range is 6.2–6.8. Because mulberry is a hardy crop, the soil moisture can be used to a greater extent by these plants.
Morus nigra is a deciduous tree growing to 12 metres (39 feet) tall by 15 m (49 ft) broad. The leaves are 10–20 centimetres (4–8 inches) long by 6–10 cm (2–4 in) broad – up to 23 cm (9 in) long on vigorous shoots, downy on the underside, the upper surface rough with very short, stiff hairs.
Yellowing (Chlorosis) occur in the newly emerging leaves instead of the older leaves and usually seen in the interveinal region. Fruit would be of poor quality and quantity. Chlorosis occurs in younger leaves because iron is not a mobile element, and as such, the younger leaves cannot draw iron from other areas of the plant.
The symptoms of P. euvitis consist of pale yellowish lesions on the surface of leaves on Meliosma spp. leaves. Signs include the observed on the underside of the leaf, which are tiny orange-brown dots that are actually spermagonia. Over time, they all eventually turn to a blackish color and undergo plasmogamy, developing into aecium. The aecium ...
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