Wednesday 29 July 2015

Armyworm (Spodoptera exigua) on Chilli


Armyworm could be very destructive at the early stage of planting and fruiting stage. It is easily recognized with two rows of pale yellow line along the side body. They are green when young and turn dark brown when matured. Their size around 3-4cm long. Young leaves on the early stage tend to attract pest attack that will consequently delay fruiting and lower yield. Some of them may hide in the flower and feed on flower as well. Larval stage (1 month) actively feed on plant's plant, it infests eggplant and tomato also.Weaken plants are prone to secondary pathogens attacks due to wounds caused by worms.

S.exigua feeding on the leaves
 

Few armyworms larvae sharing the same silk casing
 
 
With the application of the insecticides such as Steward EC (Indoxacarb 15.84%), Regent 50 SC (fipronil 5%) and Prevathon (chlorantraniliprole 5%) could have great control on this pest.
 

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