Dichlorvos ( 98TC,95TC,80EC,50EC )
COMMON NAME:Dichlorvos
CHEMICAL NAME:2,2-dichlorovinyl dimethyl phosphate
STRUCTURAL FORMULA:
PHYSICAL AND CHEMICAL PROPERTIES:
It is a light-yellow or yellowish brown transparent and volatile liquid with a slight aromatic odour,b.p.74oC(1mmHg),d420 1.42.The solubility in water is 1%, it is soluble in most organic solvents; easily hydrolyzes in alkaline solutions; corrosive to iron or soft steel.
TOXICITY: Acute oral LD50 to rats is 56-108mg/kg, acute dermal LD50 to rats is 75-210 mg/kg.
SPECIFICATION AND FORMULATION:
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Technical
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80EC
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Dichlorvos content % (m/m)
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95.0 min
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77.5 min
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Acidity(as H2SO4),%(m/m)
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0.2 max
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0.2 max
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Moisture,%(m/m)
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0.1 max
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0.1 max
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Trichlorphon content %(m/m)
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2.5 max
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Emulsion stability
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qualified
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PACKING:Iron drums with inside surface coated by anti-corrosive paint,200kg net each (for Technical).1 liter×12 bottles/case, 0.5 liter×20 bottles/case (for 80 EC)or according to customers' requirement.
Application:
Insecticide and acaricide with respiratory, contact and stomach action. Gives rapid knockdown. Dichlorvos is used to control of household and public health insect pests, e.g. flies, mosquitoes, cockroaches, bedbugs, ants, etc. stored-product pests in warehouse, storerooms etc, flies and midges in animal houses, sciarid and phorid flies in mushrooms, sucking and chewing insects and spider mites in a wide range of crops, including fruit, vines, vegetables, ornamentals, tea, rice, cotton, hops, glasshouse crops etc. Also used as a veterinary anthelmintic.
USES:Dichlorvos is strong poisonous to pests with stomach poisoning, contact poisoning and fumigation action.It is mainly used on cotton, fruit trees, vegetable, sugarcane, tobacco, tea, mulberry for controlling pests, it can also be used for public health and grain storage pests controlling.
PESTICIDE REGISTRATION CERTIFICATE:PD85105-72
PRECAUTION:
1.To avoid phytotoxicity,don't use dichlorvos on Chinese rose and sorghum.it is also sensitive to the emergence of corn and melon. The dilution times should be more than 800, it is better to have a test before using.
2.The dilution of technical grade diluted with diesel should be used up in one day.
3.It can't be mixed with alkaline solution.
4.The standard of safely using 80% dichlorvos on tea and vegetable has been made in China:
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Crop
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common rate and
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max rate and
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method
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max times of
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safety
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diluting times
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diluting times
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of use
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application
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interval
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vegetable
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1500 g/ha,1500
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3000g/ha,500
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spraying
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5
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5 days min
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tea
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2250 g/ha,1500
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3750g/ha,1500
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spraying
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1
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6 days min
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THE SCALE,METHOD AND DOSAGE OF APPLICATION (10 EC)
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Crops
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Insects
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recommendatory rate
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method of application
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cotton
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leaf caterpillars,aphids
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50-1500g/ha
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water,2000 times,spraying
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wheat
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aphid,armyworm
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750g/ha
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water,1500 times,spraying
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tea
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leafminer
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750g/ha
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water,1500 times,spraying
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vegetable
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cabbage worms
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750g/ha
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water,1500 times,spraying
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apple
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aphid,codling moth
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water,2000 times,spraying
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(warehouse)
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various pests
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0.5-0.6g/m3
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fumigating or spraying
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(health)
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various pests
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0.1g/m3
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fumigating or spraying
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