Cereal leaf beetle management with seed treatment insecticides - new and currently available products - spring wheat 2006 trials
Bragg, David E.
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Yield results for CLB in grain grams/M2 have high CVâ s for entomology trials due to the very Poisson distribution of Cereal Leaf Beetle larvae (Oulema melanopus (L). Yet obvious SDâ s show in the tables for CLB percent per flag leaf in both trials. Products in the C and D groups have SD CLB reduction at boot/early flag stage compared to groups A and B groups in the Bayer Trial. The Valent trial data show more of a gradient in CLB larval management with group C SD from A and B. One observation is that Gaucho 600 FS and 480 seem more variable on CLB than Cruiser and Poncho. The Gaucho/Spinosad treatment doe provide better control of CLB larvae per flag leaf than Gaucho alone. After 2 trials in one spring wheat season CLB larvae seem to be reduced in number by already labeled products for wireworm and aphid in spring wheat. More research is needed to study CLB flag leaf damage related to yield.