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grubs in plant roots

18 years ago

This is my first time on the forum and I came here because am having a hard time finding information on the internet, specifically, about grubs in the roots of my plants (not in the turf). We planted some fortnight lilies (Dietes spp)at the beginning of last summer and some lived, some died. I was digging up the ground to replace the dead ones and came across several (about 50 per 5-gal plot) thick grayish-white grubs, about 1 inch long with orange-brown heads feasting on the roots of these dead plants. I dug up all I could find while removing the dead plant material, but now I am worried that they will return and kill my new plants. Are these problem creatures? Any suggestions?

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