Organic Control of Striped Cucumber Beetles – Vegetable Crops Hotline

Organic Control of Striped Cucumber Beetles

​For most insect pests, we have some viable options to manage them organically. For years we have been looking for an organic solution for striped cucumber beetle and bacterial wilt on melons and cucumbers. It appears that we now have a viable option. There is a relatively new product, Cidetrak D, manufactured by Trece, which is sold as a gustatory stimulant. The active ingredient is buffalo gourd root powder, which contains a high percentage of cucurbitacin, which causes cucumber beetle to compulsively feed once they have tasted it. Years ago, there was a product available called SLAM, which contained buffalo root gourd and carbaryl, which we tested extensively and found to be quite effective. There were difficulties in applications, so the product never really took off with growers. More recently, my colleague in Kentucky, Dr. Ric Bessin, has tested Cidetrak D in conjunction with Entrust, which contains the active ingredient spinosad. Entrust is an OMRI approved product of Dow Agrosciences. Spinosad is not particularly toxic to striped cucumber beetles, and we have never had good control with Entrust alone. However, when used in combination with Cidetrak D, the beetles will feed on enough spinosad to be fatal. Dr. Bessin reports good success in Kentucky and we will have several trials this summer to test it in Indiana.

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