Spiny Bollworm

Earias insulana, Spiny Bollworm

Spiny bollworm is a 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.


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.

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Trap application guidelines

Do not re-use the trap to monitor different insects as this may lead to mixed catches. One trap for every two hectares of large scale fields of homogenous lands.

Find out more about the Delta trap


Lures for pest monitoring


Lures can be changed every 4-6 weeks to get the most accurate results.

Lures handling

Pheromone lures are a very sensitive tool. They can be affected by exposure to elevated heat and direct sunshine. Direct touching by hand may cause cross contamination leading to mixed catches in the trap. Some contaminants such as Nicotine May have repellent effect reducing trap catch.

Lure Storage

Store in a cool dry place.

Shelf life can vary from 3-36 months depending on the storage temperature.

See Technical Data Sheet for further details.

Find out about the Qure

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