Preparation of spray solution:- First add a little quantity of water to the wettable powder and prepare a thin paste. Add this solution slowly into the required quantity of water and stir well. Operators are always recommended to give the spray a thorough stirring when resuming work after breaks. Plant Protection Equipments: Knapsack or foot-operated sprayers fitted with flat fan or flood jet type of nozzle. To ensure better effectiveness follow the undermentioned guidelines. (1) For pre-emergence application : (a) Ensure that the field does not have clods and stubble (b) After spraying metribuzin 70 WP, do not disturb the soil. (2) For pre and post-emergence application: (a) Avoid drift of spray into adjoining crop fields. The recommended time of application and dose should be observed. metribuzin 70 WP should be sprayed with flood jet/flat fan nozzles without overlapping spray swaths. To keep uniform swath width, it is advisable to keep the nozzle height constant from ground level i.e. 48-50 cm. Precautions by users:- 1. After each operation the mixing and spraying equipment is to be rinsed thoroughly with plenty of water, using a detergent or soap solution before being put to use for spraying other pesticides 2. Any surplus spray solution must not be disposed of in croplands or in stagnant flowing water, where there is a possibility of polluting sources. Limitations for use:- It should not be used in crops where it has not been recommended. It should never be used in combination with any insecticides, urea, or growth regulators. Precaution for use in wheat: 1. Avoid use in Sandy soil 2. Spray on a clear day 3. Second irrigation should be light and avoid stagnation of water 4. Avoid overlapping during the application 5. Do not tank mix with other herbicides 6. Do not broadcast. It should be sprayed at optimum concentration with flood Jet/Flat Fan nozzles. 7. Concentrate on areas where the resistance of Phalaris minor is confirmed. Manner and time of application: Soybean: Pre-emergence- 1-2 days after sowing. Wheat: post emergence- 35 days after sowing. Sugarcane: Pre-emergence- 3-5 days after planting or Post emergence- 25-30 days after planting. Potato: Pre-emergence- 3-4 days after planting or post-emergence- between emergence and time when the first potato plant has reached the height of 5 cm. Tomato: Pre-planting- a week before transplanting or post-planting- 15 days after transplanting. Purpose: for agricultural use Re-entry period: As soon as the spray dries up in the crops

1. Keep away from foodstuffs, empty foodstuff containers, and animal food. 

2. Avoid contact with mouth, eyes, and skin. 

3. Avoid inhalation of the spray mist. Spray in the direction of the wind. 

4 . Wash thoroughly the contaminated clothes and parts of the body after spraying. 

5. Do not smoke, drink, eat or chew anything while spraying. 

6. Wear full protective clothing while mixing and spraying.

Headache, nausea, allergic manifestation, nervousness, anxiety, tremor, and spasticity in muscles may occur.

1. The packages containing weedicides shall be stored in separate rooms or premises away from the rooms or premises used for storing other articles or shall be kept in separate almirahs under lock & key depending upon the quantity & nature of weedicides & insecticides 

2. The rooms or premises meant for storing weedicides & insecticides shall be well-built, dry well lit & ventilated & of sufficient dimension. To avoid contamination with vapors.

FIRST AID: 1. If swallowed, induce vomiting by tickling the back of the throat. Repeat it until the vomitus is clear. Do not induce vomiting if the patient is unconscious. 2. If clothing and skin are contaminated, remove the clothes and wash the contaminated skin with a copious amount of soap and water. 3. If eyes are contaminated, flush with plenty of saline/clean water for about 10 to 15 minutes. 4. If inhaled, remove the patient to fresh air. 

Antidote: No specific antidote is known. Treat symptomatically.