Agrow is part of the Business Intelligence Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them. Informa PLC’s registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

This copy is for your personal, non-commercial use. Please do not redistribute without permission.

Printed By

UsernamePublicRestriction
UsernamePublicRestriction

Beet PI seen as potential pest control

Researchers have identified a sugar beet proteinase inhibitor (PI) that has potential for the broad-spectrum control of lepidopteran pests. Serine proteases are the dominant digestive enzymes in Lepidoptera. The study assessed the effects of feeding tobacco ( Nicotiana benthamiana) leaves expressing the beet serine PI (BvSTI) to larvae of five lepidopteran tobacco and/or sugar beet pests. In three species, fall armyworms ( Spodoptera frugiperda), beet armyworms ( S exigua) and tobacco hornworms ( Manduca sexta), larvae weighed significantly less than controls fed on normal tobacco leaves. However, larval weights increased compared to controls in tobacco budworms ( Heliothis virescens) and black cutworms ( Agrostis ipsilon). Mortality rates in H virescens were some five times greater than controls. Developmental abnormalities of the pupae and emerging moths were noted in all five species. They are all pests in tobacco, while S frugiperda, S exigua and A epsilon are also pests of sugar beet.

Advertisement

Topics

What to read next

Advertisement
UsernamePublicRestriction

Register

AG011698

Ask The Analyst

Please fill in the form below to send over your enquiry or check the Ask The Analyst Page to find out more about the service

Your question has been successfully sent to the email address below and we will get back as soon as possible. my@email.address.

All fields are required.

Please make sure all fields are completed.

Please make sure you have filled out all fields

Please make sure you have filled out all fields

Please enter a valid e-mail address

Please enter a valid Phone Number

Ask your question to our analysts

Cancel