African Bollworm

Helicoverpa armigera, African Bollworm

African Bollworm, Helicoverpa armigera, is an economically important agricultural insect of cotton, tomatoes, tobacco, chickpea, maize, sorghum, wheat, groundnut, sunflower, chilli, pigeon pea. Helicoverpa armigera or African bollworm is distributed in Asia, Africa, mainland Europe, and Australia.

Russell IPM manufacture and supply pheromone lures, traps and complete monitoring systems for African ball worm, Helicoverpa armigera. Pheromone trap data gives early warning of the infestation and also exhibits the density of the insect population.


Mature female can lay several thousand eggs .The eggs are approximately 0.5 mm in diameter and are white to brown in colour. Caterpillars pass through four developmental stages (instars) and ultimately reach 35 to 40 mm in length. Wavy broken lines run along the body of the cater pillar. Minute hair like spines covers the body. These are characteristic of these caterpillars. The caterpillars pupate in the soil. Pupae are usually 10-20 mm long. Adult moths have a wing-span of 30 to 40 mm, and range in colour from grey to orange-brown. The forewings have a network of dark lines and a broad brown band. The hind wings are paler, with a broad, dark brown border.

Research & Development

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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