Spider mites of sweet Sorghum

(Oligonychus indicus)

 Symptoms

• The spider mites, Oligonychus indicus suck sap from the under surface of the leaves.
• The infested leaf becomes pale-yellow initially, reddish on the top later, and the entire leaf may turn brown.
• As mite numbers increase on the lower leaves, the infestation spreads upwards through the plant.
• The undersides of the infested leaves have a dense webbing. Under severe infestation, the mites may web the sorghum panicles as well.
• Infestation generally increases after panicle emergence.
• Olygonychus indicus infestations become severe under drought conditions, generally during the postrainy and summer seasons.

 

The Spider mites damage in sweet Sorghum