Westcott N D, Reichle R A
J Environ Sci Health B. 1987;22(1):91-101. doi: 10.1080/03601238509372547.
Residues of cypermethrin and deltamethrin in wheat herbage and grain and deltamethrin in sweetclover herbage were determined. Cypermethrin was applied at 28 g/ha to wheat and the residues on the herbage declined exponentially from 3.74 ppm immediately after spraying to 0.20 ppm 27 days after spraying. No cypermethrin residues were detected in the grain. Deltamethrin was applied at 6 g/ha to wheat and the residues on the herbage declined exponentially from 0.70 ppm immediately after spraying to 0.05 ppm 27 days after spraying. No deltamethrin residues were detected in the grain. Deltamethrin was applied to sweetclover at 3, 4, 5, 10, and 16 g/ha. Residues on the herbage declined exponentially from 0.10, 0.16, 0.22, 0.40 and 0.70 ppm immediately after spraying to 0.02, 0.03, 0.04, 0.15 and 0.18 ppm 5 days after spraying, respectively.
测定了小麦牧草和籽粒中氯氰菊酯及溴氰菊酯的残留量以及草木樨牧草中溴氰菊酯的残留量。氯氰菊酯以28克/公顷的用量施用于小麦，牧草上的残留量在喷施后立即从3.74 ppm呈指数下降至喷施后27天的0.20 ppm。籽粒中未检测到氯氰菊酯残留。溴氰菊酯以6克/公顷的用量施用于小麦，牧草上的残留量在喷施后立即从0.70 ppm呈指数下降至喷施后27天的0.05 ppm。籽粒中未检测到溴氰菊酯残留。溴氰菊酯分别以3、4、5、10和16克/公顷的用量施用于草木樨。牧草上的残留量在喷施后立即从0.10、0.16、0.22、0.40和0.70 ppm呈指数下降至喷施后5天的0.02、0.03、0.04、0.15和0.18 ppm。
