[Market-farming] Colorado Potato Beetle

Pam Twin Oaks pam at twinoaks.org
Sun May 31 10:10:23 EDT 2009


Last year and this, we used Spinosad - there are OMRI acceptable versions.
Spray in early morning or evening, as it's toxic to bees (not that bees are
very interested in potatoes). Repeat if needed, within 7 days. I think the
Action Level is 10 adults or  400 (?) larvae per 100 random plants. Unlike
Bt, Spinosad also kills the adult beetles and the big fat larvae.

Pam, Twin Oaks, central Virginia, zone 7
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