Spiny Bollworm, Earias insulana

Spiny bollworm is an important economic insect of cotton.

Earias insulana is widely distributed from China, India, Middle-East as well as north and eastern Africa. Some parts of the Americas also affected by it. The Caterpillars bore into tender shoots, flower buds and fruits. As a result, the shoots dry, flower buds and fruits drop prematurely.

Russell IPM manufacture and supply pheromone lures, traps and complete monitoring systems for Spiny bollworm  Earias insulana. Pheromone trap data gives early warning of the infestation and also exhibits the density of the insect population.

Biology

The caterpillar grows to a length of 15-18 mm long and is greyish with black spots and markings. Note the characteristic spines on the body. The adult moth has a wingspan of 20-22 mm. The wings are straw coloured with a few distinct lines across the front wings   are reported to have green wings or fields of green across the wings. The colour depends on temperature and other environmental factors.

Nature of Damage

The Caterpillars bore into tender shoots, flower buds and fruits. As a result, the shoots dry, flower buds & fruits drop prematurely. Fruits remaining on the plants get deformed and often show exist holes of the larvae.

Monitoring

Russell IPM manufactures and supplies pheromone lure – the Qlure, traps and complete monitoring systems for  Earias insulana, Spiny Bollworm.

Pheromone trap data gives early warning of the infestation and will also alert the user to a low level of population before it becomes serious.

The lure can be best applied with the Mothcatcher trap or Delta trap.

Menu