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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:

 

Technical

80EC

Dichlorvos content % (m/m)

95.0 min

77.5 min

Acidity(as H2SO4),%(m/m)

0.2 max

0.2 max

Moisture,%(m/m)

0.1 max

0.1 max

Trichlorphon content %(m/m)

2.5 max

 

Emulsion stability

 

qualified

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:

Crop

common rate and

max rate and

method

max times of

safety

 

diluting times

diluting times

of use

application

interval

vegetable

1500 g/ha,1500

3000g/ha,500

spraying

5

5 days min

tea

2250 g/ha,1500

3750g/ha,1500

spraying

1

6 days min

THE SCALE,METHOD AND DOSAGE OF APPLICATION (10 EC)

Crops

Insects

recommendatory rate

method of application

cotton

leaf caterpillars,aphids

50-1500g/ha

water,2000 times,spraying

wheat

aphid,armyworm

750g/ha

water,1500 times,spraying

tea

leafminer

750g/ha

water,1500 times,spraying

vegetable

cabbage worms

750g/ha

water,1500 times,spraying

apple

aphid,codling moth

 

water,2000 times,spraying

(warehouse)

various pests

0.5-0.6g/m3

fumigating or spraying

(health)

various pests

0.1g/m3

fumigating or spraying

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