Fate of 3-hydroxy-N-methyl-cis-crotonamide dimethyl phosphate in cotton plants

The metabolism and degradation of vinyl phosphate insecticides

“…The breakdown of 32p_ and 14C-phosphamidon was examined on cottonseed by BULL et al (1967), the cis-and trans-isomers being (ANLIKER et al 1961, BULL et al 1967 examined separately. Cotton leaves were treated in the field by injecting an aqueous phosphamidon solution and were sampled at up to 32 days later.…”

“…Composition of radioactivity in cotton leaves following applications of "P-p1wsphamidon (BULL et al 1967 phamidon. Both isomers were again oxidised and hydrolysed and appreciable time was taken for penetration of the residues (BULL et al 1967). Rinsing the leaves with aqueous methanol washed off both hydroxyethyl and des ethyl phosphamidon from the surface of the leaves.…”

“…Unknown D also was detectable with both 32p_ and 14C-Iabels and must have had most of the original phosphamidon moleeule intaet. However, the phosphorus-free products were thought unlikely to be a residue problem and they were not hydrolysable by acid to less polar or hydrophilie produets (BULL et al 1967). Thus, it was not thought that eonjugates eomparable to those detected from monoerotophos or dierotophos were present LINDQUIST 1964, LINDQUIST andBULL 1967).…”

“…However, the phosphorus-free products were thought unlikely to be a residue problem and they were not hydrolysable by acid to less polar or hydrophilie produets (BULL et al 1967). Thus, it was not thought that eonjugates eomparable to those detected from monoerotophos or dierotophos were present LINDQUIST 1964, LINDQUIST andBULL 1967). A short study of the breakdown of 32P-phosphamidon in aHaHa was carried out by BULL et al (1967).…”

“…Thus, it was not thought that eonjugates eomparable to those detected from monoerotophos or dierotophos were present LINDQUIST 1964, LINDQUIST andBULL 1967). A short study of the breakdown of 32P-phosphamidon in aHaHa was carried out by BULL et al (1967). Alfalfa sprigs were maintained in nutrient solution after being allowed to imbibe an aqueous solution of cis-and trans-32 P-phosphamidon.…”