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Ulka 505


Trade Name Ulka 505
Common Name Chlorpyrifos 50% + Cypermethrin 5% EC



  • Ulka 505


Physio Chemical Properties:

Trade name Ulka 505
Common name Chloropyriphos 50% + Cypermethrin 5%
Chemical Name O,O-diethyl O-3,5,6-trichloro-2-pyridyl phosphorothioate + (R,S)-alpha-cyano-3-phenoxybenzyl(1RS)-cis,trans-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropane-carboxylate
Solubility Soluble in all organic solvents
Stability End product is stable for 2 years if stored under proper conditions
Toxicity Acute Oral (LD50 for rats) is 250 mg/Kg body weight (in corn oil)
Acute Oral (LD50 for rats) is 4123 mg/Kg body weight (in water)
ADI for humans is 0.05 mg/Kg body weight/day
Mode of Action:

Ulka 505 exhibits a stomach, contact activity.

  • Being broad spectrum it affords control over all sucking, biting, chewing pests.
  • It exhibits rapid action.
  • It has greater effectiveness against all Lepidopterean pests.
  • Due to higher persistance value it remains effective for longer durations.
  • More resistant to washing off due to rain water.
  • Relatively cost effective.
  • Less waiting period between last spray and harvest.
Method of Application:

Ulka 505 can be applied as a foliar spray.

Preparation for Spray Solution:

Take a small quantity of water in a container and dissolve required quantity of Ulka 505 in it. Stir this solution properly and mix it with the remaining quantity of water. The volume of total water required will depend on crop stage, crop cover, the total area to be treated and the type of sprayer used.

Spectrum of Action and Suggested Uses:
Crop Pest Dosage (ml/ha)
Cotton Bollworm
160 - 280
80 - 120
80 - 120
Okra Shoot and Fruit borer
150 - 200
150 - 200
Brinjal Shoot and Fruit borer
Epilachna Beetle
150 - 200
150 - 200
150 - 200
  • Compatibility
    Ulka 505 is compatible with all existing plant protection chemicals presently available in the market.
  • Phytotoxicity
    It is not phytotoxic on any crops if used at recommended doses.
  • Precautions and Antidotes
    Accidental ingestion should be avoided at all costs. Wear protective clothing while spraying. Wash hands and body after spraying. Do not eat or drink or smoke while spraying.

    If accidental poisoning occurs call physician immediately. Induce vomiting to clear stomach. Treat patient symptomatically. General supportive measures include Oxygen if patient is cyanosed or in respiratory distress and use of anticonvulsants if this occurs. Avoid use of respiratory depressants unless otherwise indicated e.g. barbiturates, opiates. Monitor and maintain fluid and electrolyte levels.
  • Packaging
    Available in 100 ml, 250 ml, 500 ml, 1 Litre, and 5 Litre packs.


Used In Following Countries:

  • India



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