INFLUNCE OF SOME ADJUVANTS ON PHYSICO-CHEMICAL PROPERTIES, EFFICTIVENESS, AND PERSISTENCE OF SOME INSECTICIDES FORMULATIONS | ||||
| Journal of Plant Protection and Pathology | ||||
| Article 6, Volume 29, Issue 4, April 2004, Page 2105-2115 PDF (716.86 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jppp.2004.239539 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| M. D. Betana,; M. A. Hussein; A. M. A. EI-Kadi | ||||
| Central Agricultural Pesticides Laboratory, Agricultural Research Center, Dokki, Giza, Egypt. | ||||
| Abstract | ||||
| In this stucv. interacMns 01 all combinations 01 two insecticides Bnd eight candidate adjuvants on physico-chemical properties. insecticidal activity and persistence were studied. Physical compatibility between two msecucides and adjuvants were studied by Ihe effect of adjuvants on emulsion stability of insecticides Also. physico-chemical properties of spray solution of insecticides alone and mixed vlilh adjuvants were studied. wh',ch were: viscosity. surtace tension. pH. conductivity ~Iinlty end (oaming layer. A cornbinatroo of adjuvants with lested Insecticides showed physicat compatib4tity compared with either cornconeot alone. when they added at 0.3% 8S they changed some physic.o-chemic.at properties of ins ecricides spray sohnion. Toxicological studies proved that sY(lergislic action of e sfenvaterate appeared when mixed with glue and phosphoric acid. Also. glue. gum and acetic acid caused hignly synergislic effect when they added to profenofos, however the other adjuvants showed additive and antaqonistic effects. Results of bioassays of rnixtuzes indicated increase the effE:C1iveness of esrenvaterate and orotenofos, in decreasing average weighl of pupa and number of eggs for cotton leafworm. The inclusion of some adjuvants in spray emulsions of esfenvalerate and profenolos at their lull and half recommended field rates. enhanced the activity of tested insecticides al half recommended rate. Moreover, the castor oil was highly effect in improving the persistence at low rate. It Il'ICreased persistence of estenvaterate at half recommended rate 10 be already similar to full recommended rata also, to be more than full r&CQmrnenood rate in cause at oroteootos No phyl010xicity \1-12 S observed on cotton plants. Resorts of these studies should be useful in planning of (uture field trials 10 Increase the effectiveness and 10 manage the rare of field apolications. | ||||
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