Thrips damage Thrips cause damage to the plant by piercing the cells of the surface tissue and sucking out their contents, causing the surrounding…
lesions become grey and fluffy. The lesions caused by ascospores are more restricted, whereas the lesions caused by conidia extend faster and may…
A very small population can thus cause considerable loss of value. Soft scales feed mostly on leaves and twigs, causing discolouration of foliage,…
and cause primary infection of the leaves. Survival can be several years, up to eight years for several Alternaria spp. Typically, Alternaria causes…
there. Damage symptoms Leaf miners cause damage to plants both directly and indirectly. The most direct damage is caused by the larvae mining the leaf…
crops. Even within one crop, different 'formae speciales' may occur and cause different symptoms. This species is the only Fusarium that actually…
Phytophthora causes root rot, seedling damping off and rot of stems, bulbs, tubers, leaves and fruits. Several Phytophthora species cause root- and…
la fijiensis also known as black sigatoka, is an ascomycete fungus that causes leaf-spot of banana. Life cycle and appearance of Black sigatoka…
mildew of Cucurbits General Pseudoperonospora cubensis is a plant pathogen causing downy mildew on cucurbit crops like cucumber, cantaloupe, pumpkin,…
nd plant parts, leaf wetness is required. Dispersal is by wind and rain causes the pathogen to be returned to the soil from infected plants. Dispersal…
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