the corn earworm The eggs of corn earworm are a milky-white colour, which turn dark grey before hatching, and have a ribbed spherical shape. The…
shoots. Sometimes the buds and flowers are also attacked. The infested tissue turns the colour to silvery to brown or black. The infested leaves start…
in leaf scorch. Part of a green leaf suddenly dies and turns brown with adjacent tissue turning yellow or red. This desiccation spreads and the whole…
causes the leaves to curl and twist. Severe infestation causes the leaves turn pale, curl badly, dry off and growth retardation of younger trees. How…
leaves. In most crops, the white colonies later turn brown or grey. Severely affected leaves may turn yellow, curl up or drop off. Solution Finder…
d by Encarsia formosa turn black, Bemisia tabaci pupae become brownish. Whitefly pupae parasitized by Eretmocerus eremicus turn yellow, the adult…
microsclerotia. The microsclerotia germinate and produce mycelium that in turn infect the roots of tomato and other hosts. Several alternate hosts in…
light brown. On fruits the spots are first small, circular and green but they turn brown, become raised and look like cracked scab. Solution Finder…
species cause the growth of galls on the stems, which are first white and later turn brown. Only Rhizobium radiobacter causes galls and tumours on…
Fusarium wilt ) is the species that causes vascular wilt. Initially, the leaves turn yellow and wilt, mostly on one side of the plant. Finally, the…
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