How to rid Knockout Roses of tiny green leaf eating caterpillars? We started noticing small holes, edges chewed off green leaves on stem. One bush in line of 4 is especially strong with thick green stalks, high growth, beautiful red roses, and recently acquired these tiny green caterpillars...really a problem now.
How to Rid Knockout Roses of Caterpillars
p103370 added on October 25, 2015 | Answered
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Answered on October 27, 2015
Apart from picking them off, a fungicide spray should do the trick.
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