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larva feed

Catalogue: Broadacre Field Crops DAFF QLD
Rough bollworm is the larvae of a moth which occurs widely on malvaceous plants, including cotton in Australia and the Pacific Islands... Larvae are up to 18mm long, thickset, mottled grey and brown with irregular yellow-orange spots in rows along the back... Cut open green bolls and wilting or dying growing points and check for larvae...
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Catalogue: Broadacre Field Crops DAFF QLD
Rough bollworm is the larvae of a moth which occurs widely on malvaceous plants, including cotton in Australia and the Pacific Islands... Larvae are up to 18mm long, thickset, mottled grey and brown with irregular yellow-orange spots in rows along the back... Cut open green bolls and wilting or dying growing points and check for larvae...
Related categories:
Catalogue: Broadacre Field Crops DAFF QLD
Rough bollworm is the larvae of a moth which occurs widely on malvaceous plants, including cotton in Australia and the Pacific Islands... Larvae are up to 18mm long, thickset, mottled grey and brown with irregular yellow-orange spots in rows along the back... Cut open green bolls and wilting or dying growing points and check for larvae...
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Catalogue: Broadacre Field Crops DAFF QLD
Each female beetle lays 40-280 eggs during its lifetime, dropping them loosely among the foodstuff or inserting them into the crevice of a grain kernel... The development from egg to adult takes up to 3 weeks under optimal conditions of 33 C and 80% relative humidity... Good hygiene with storage and handling equipment should minimise infection...
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Catalogue: Broadacre Field Crops DAFF QLD
Each female beetle lays 40-280 eggs during its lifetime, dropping them loosely among the foodstuff or inserting them into the crevice of a grain kernel... The development from egg to adult takes up to 3 weeks under optimal conditions of 33 C and 80% relative humidity... Good hygiene with storage and handling equipment should minimise infection...
Related categories:

Catalogue: Broadacre Field Crops DAFF QLD
Each female beetle lays 40-280 eggs during its lifetime, dropping them loosely among the foodstuff or inserting them into the crevice of a grain kernel... The development from egg to adult takes up to 3 weeks under optimal conditions of 33 C and 80% relative humidity... Good hygiene with storage and handling equipment should minimise infection...
Related categories:
Catalogue: Broadacre Field Crops DAFF QLD
The larvae feed on the buds and flowers and bore into the pod to eat the developing seeds... The flowers and pods are bound together by frass-covered web produced by the larva... Open all flowers from as many racemes as possible to look for larvae (at least 10 racemes randomly sampled across a crop)...
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Catalogue: Broadacre Field Crops DAFF QLD
The larvae feed on the buds and flowers and bore into the pod to eat the developing seeds... The flowers and pods are bound together by frass-covered web produced by the larva... Open all flowers from as many racemes as possible to look for larvae (at least 10 racemes randomly sampled across a crop)...
Related categories:
Catalogue: Broadacre Field Crops DAFF QLD
The larvae feed on the buds and flowers and bore into the pod to eat the developing seeds... The flowers and pods are bound together by frass-covered web produced by the larva... Open all flowers from as many racemes as possible to look for larvae (at least 10 racemes randomly sampled across a crop)...
Related categories:
Catalogue: Broadacre Field Crops DAFF QLD
Late instar Helicoverpa larvae can vary greatly in colour and markings State of Queensland.. Life cycles of H. armigera and H. punctigera take 4-6 weeks from egg to adult in summer, and 8-12 weeks in spring or autumn... Not all pupae that form in late summer go into diapause: a proportion continues to develop, perhaps emerging during winter, or early in spring...
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