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Effect of hydroprene on the development of T. castaneum. The final instar larvae were treated with 0.5ppm of hydroprene before 24-h AEFL. The subsequent molt or metamorphic stages are shown. The control larvae treated with acetone alone entered the quiescent stage and pupated while hydroprene-treated larvae molted into supernumerary larvae twice, avoiding the quiescent stage. Scale bar = 1 mm.
