Identification Symptoms
 
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                  - Red mite (O. indicus) occurs in hot weather mostly in years when a few summer showers are received.
- The leaves turn red in patches.
- The white mite (S. andropogoni) appears little later in May, June and July.
- It occurs under characteristic oval webbings and the chlorophyll is depleted in oval patches.
- Hot dry conditions favour their multiplication.