Postemergent pesticides

Uses Wetter/spreader/penetrant allows for superior spreading and absorption of postemergent pesticides and fertilizer prods. Into plant, leaf, and stem surfaces Regulatery DOT nonregulated SARA reportable... 

Herbicides control weeds and are the most widely used class of pesticides. The latest US EPA data show that some 578 million pounds of herbicides were used in the United States in 1997 and accounts for some 47% of pesticides used. This class of pesticide can be applied to crops using many strategies to eliminate or reduce weed populations. These include preplant incorporation, pre- and postemergent applications. New families of herbicides continue to be developed, and are applied at low doses, are relatively nonphytotoxic to beneficial plants and are environmentally friendly. Some of the newer families such as the imidazolinones inhibit the action of acetohydroxyacid synthase that produces branched-chain amino acids in plants. Because this enzyme is produced only in plants, these herbicides have low toxicities to mammals, fish, insects, and birds. 

The long-term treatment studies also include hydroponic studies (Hilton et al, 1974, 1976), as well as preemergence studies (Robinson et al, 1970 Gronberg et al, 1971 Church and Flint, 1973 Morgan, 1974 Fenz et al, 1987) and postemergence studies (Morgan, 1972,1973 Stanley and Flint, 1974 Maun and McLoed, 1978 Schocken et al, 1987) involving analysis of mature plants. The duration of these studies was usually measured in terms of weeks or months, and their purpose was to determine the nature of the terminal residues in crops in order to set pesticide residue tolerances. 

Acifluorfen sodium Acifluorfen sodium salt Blazer Blazer 2L Blazer 2S Carbofluotfen Caswell No. 755D EINECS 263-560-7 EPA Pesticide Chemical Code 114402 HSDB 6551 LS 80.1213 MC 10978 RH 6201 RH 6205 Scifluorfen Sodium Acifluorfen Sodium salt of acifluorfen Tackle Tackle 2AS. Used for postemergence control of broad-leaved weeds and suppression of some annual grasses in soybeans. Registered by EPA as a herbicide. Solid, soluble in H2O (25 g/100 ml at 25 ) LCso (rainbow trout 96 hr.) = 31 mg/l, (bluegill sunfish 96 hr.) = 54 mg/l non-toxic to bees. Aventis Crop Science BASF Corp. Bayer AG Monsanto Co. 

Insecticides and fungicides are usually applied postemergent, when the insect or disease is present. The application characteristics and tank mix additives used for herbicides are very similar to those for insecticides and fungicides. As often as possible, pesticides and fertilizers are applied simultaneously to avoid multiple trips through the fields. 

Bioassay for clacyfos was carried out in the greenhouse for its pre- and postemergence herbicidal activity, selectivity, crop safety and biological property at National Pesticide Discovery South Center (Zhejiang) or National Pesticide Engineering Research Center (Nankai University, Tianjin) in Chain. The results are summarized as follows. 

Uses Wetting agent/spreader/penetrant adjuvant in postemergent, nonselective herbicide sprays, for use on alfalfa, corn, cotton, oats, peanuts, rice, sorghum, soybeans, sugarcane, wheat, lawns, turf, and greens, with pesticides, fertilizers, and micronutrients... 

Uses Wetting agent/spreader/penetrant adjuvant for postemergent, nonselective pesticide sprays... 

Uses Spray tank adjuvant, penetrant for pesticides, esp. with postemergence herbicide and desiccant/defoliant sprays Features Increases act. of pesticides Reguiatory DOT nonregulated SARA reportable... 

Uses Adjuvant for pesticides exc. penetrator and is esp. effective with postemergence herbicide and desiccant/defoliant sprays well-suited for use under adverse weather conditions inc. stability of some volatile herbicides Reguiatory DOT nonregulated SAFtA reportable Properties Red cl, si, viscous liq. mild polyether odor emulsifies in water sp.gr. 

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