Orchard with bare trees in winter dormant season, rows of fruit trees, open agricultural landscape
Crop Protection — Oil

Dormant Spray Oil (TSO)

Tree spray oil for dormant-season pest and disease management in orchards.


Vayu Dormant Spray Oil (TSO) is a refined petroleum-based horticultural oil formulated for application during the dormant season in orchards and perennial crops. It provides effective control of overwintering pests and disease inoculum, supporting a clean start to the growing season.

Orchard with bare trees in winter dormant season, rows of fruit trees, open agricultural landscape
Product TypeHorticultural Oil — Dormant Spray
Active IngredientRefined petroleum oil (Tree Spray Oil)
KEY BENEFITS

Overwintering Pest Control

Effective against overwintering eggs, scales, mites and other dormant-stage pests on orchard trees and perennial crops.

Disease Inoculum Reduction

Helps reduce overwintering fungal disease inoculum on bark and woody tissue, supporting a cleaner start to the growing season.

Physical Mode of Action

Acts by smothering and suffocating target pests — physical mode of action with no risk of chemical resistance development.

Resistance Management

Physical mode of action makes it an effective component of resistance management programs, with no cross-resistance to chemical insecticides or fungicides.

Suitable for Dormant Application

Formulated for application during the dormant season when trees are not in active growth, minimising the risk of phytotoxicity.

Established Orchard Practice

Dormant oil spraying is a well-established orchard management practice with a long history of reliable performance in fruit and nut production.

TECHNICAL INFORMATION

Product specifications

Physical mode of action — oil film smothers and suffocates overwintering pest eggs, scales and mites on contact.

Product TypeHorticultural Oil — Dormant Spray
Active IngredientRefined petroleum oil (Tree Spray Oil)
Formulation TypeEmulsifiable Concentrate (EC)
Mode of ActionPhysical — smothering and suffocation of target pests
Application TimingApply during dormant season before bud break
Pre-Harvest IntervalNot applicable — dormant season application
Shelf Life2 years from date of manufacture when stored correctly
StorageStore in a cool, dry, well-ventilated place away from direct sunlight and heat sources. Keep container tightly closed.
TARGET APPLICATIONS
  • Dormant season spray against overwintering scales, mites and insect eggs on orchard trees
  • Reduction of overwintering fungal disease inoculum on bark and woody tissue
  • Application before bud break in apple, pear, stone fruit and other deciduous orchard crops
  • Component of an integrated orchard pest and disease management program
RECOMMENDED CROPS
ApplePearStone FruitsGrapesCitrusFruits & Orchards
USAGE INSTRUCTIONS

Application guidance

Dilute the recommended quantity in water and apply as a thorough, uniform spray to all woody surfaces of the tree during the dormant season before bud break. Ensure complete coverage of bark, branches and twigs. Do not apply when temperatures are below 4°C or when frost is forecast within 24 hours. Do not apply to actively growing trees. Always read the product label and follow all safety precautions before use.

Always read the product label and follow all safety precautions before use. Use crop protection products safely and responsibly.

PACKAGING

Available pack sizes

1L
5L
20L

GET IN TOUCH

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Dormant Spray Oil (TSO)?

OFFICE

29 C, Mall Road, Ludhiana 141001, Punjab, India