Blosyrus inaequalis beetle in sweet potato

Blosyrus inaequalis is mostly found in Siri-Lanka and India, but lately also in the northern parts of South Africa. So far the economical damage cause in the highveld in South Africa is not a big concern, but in the lowveld it can cause problems. Folded leaf edges with 15-25 eggs is a sign of Blosyrus inaequalis infestation. The edge of leaves are a perfect starting point for the larvae as they drop from there onto the soil and burrow until they find the roots or tubers. Damage is easy to identify as the surface of the root have “paths” on the skin.

There are no registered chemicals to control Blosyrus inaequalis but you can follow the recommendations with Sweet potato weevil. Transplanting after the second week in January and harvesting from July seems to help minimize damage.

Share This Story, Choose Your Platform!

About the Author: Antonius

I studied agriculture at the University of Stellenbosch in South Africa in 1984 and completing my M.Sc Agric. in 1998. . My love for "Controlled Environmental Agriculture" (CEA), started in my third year when I was exposed to the Welgevallen Research Station. There Prof. P.C.Maree showed us what hydroponics and vegetable farming consisted of. It was awesome. There were no large tractors involved, no dusty fields, no uncontrollable storms to destroy your crop (well that is what I thought). Since then I put hydroponics and other aspects of horticulture to much better use, not just farming. We solved pollution problems by cleaning mines effluent with hydroponics and permaculture. They were used to remove toxic metals to produce clean water (which we sold and make more money of than the produce). What I learned from 1987 I tried to compile in this website and I hope it is from some value to the serious commercial farmer that wants to take the journey into Commercial Farming.

Leave A Comment


The reCAPTCHA verification period has expired. Please reload the page.

This site uses Akismet to reduce spam. Learn how your comment data is processed.