Spodoptera frugiperda (J. E. Smith). The highest parasitization levels found for corn, alfalfa, grass, peanut, and sorghum were 77, 30, 54, 37, and 20%, respectively. Chelonus insularis (Cresson) had ...
The sketches on this page have been generously donated by leading engineering offices. They represent a broad range of scenarios where freehand drawings are the preferred tool of the engineer. Thanks ...
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