Aphicide persistence on spinach and mustard greens.
Laboratory bioassays with green peach aphids, Myzus persicae (Sulzer), were conducted on samples from field grown spinach and mustard greens to determine the persistence of triazamate, dimethoate, and mevinphos. Treatment with each insecticide resulted in similar mortality initially on both crops. Mortality on samples from mevinphos treated plants declined considerably by 1 d after treatment. Dimethoate persisted for > 4 d at a level that would kill at least some aphids during the allotted time. Persistence of triazamate and dimethoate activities were similar on spinach. Triazamate, however, resulted in greater aphid mortality through time on mustard greens than did dimethoate.
Sweeden
M B
MB
Department of Entomology, University of Arkansas, Fayetteville 72701, USA.
McLeod
P J
PJ
D000818:Animals; D001042:Aphids; D004117:Dimethoate; D007306:Insecticides; D008799:Mevinphos; D009149:Mustard Plant; D009930:Organic Chemicals; D010573:Pesticide Residues; D010946:Plants, Medicinal; D018724:Spinacia oleracea
D007306:Insecticides; D009930:Organic Chemicals; D010573:Pesticide Residues; D008799:Mevinphos; C105743:triazamate; D004117:Dimethoate