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Principle Investigators: J.
Keith Waldron, NYS IPM Program, Cornell, Ithaca
Elson J. Shields, Entomology, Cornell,
Ithaca
W. J. Cox, Crop and Soil Science, Cornell,
Ithaca
Cooperators: Tony Testa, Entomology,
Cornell, Ithaca
Abstract: On-farm demonstrations
were initiated at the Cornell Musgrave Farm, Aurora and the Cornell
Teaching and Research (T&R) Farm, Harford, to present, compare,
and evaluate new and emerging corn rootworm (CRW) management strategies.
In this second phase of a three year project, two ca. 0.7 acre field
sites (Musgrave Farm field "X" and Animal Science Teaching
and Research NYSEG field) were planted to a corn rootworm resistant
(Bt transgenic) hybrid and a non — transgenic hybrid receiving
one of the following treatments: no soil insecticide (control), conventional
soil insecticides: Force 3.0 G, Lorsban 15G or Counter 20 CR, insecticide
seed coatings: Gaucho (seed corn maggot rate), Prescribe (CRW rate),
or TI-435. Treatments were compared for relative corn rootworm protection.
In addition to these treatments, ca.
0.7 acre plots of pumpkins and field corn were late planted at each
site as trap crops to attract mature corn rootworm beetles (Diabrotica
species). These sites attracted a concentrated infestation of gravid
CRW females to provide a suitable number of eggs for a location to establish
the CRW control comparison demonstration in 2002. Year 2 objectives
have been completed and a summary of activities is presented.
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