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PULSE Penetrant for Herbicides & Insecticides, 5L

Stock Code:
Stock Level:
In Stock 6+
Quantity Breaks


Pulse Penetrant is an organosilicone surfactant specifically designed to increase uptake and resulting herbicidal activity on difficult to penetrate weeds including 'woody weeds'.

  • Excellent unsurpassed spreading characteristics

  • Improves uptake through stomatal flooding

  • Improves efficacy on hard to wet weeds (for example woody weeds)

  • Improved efficacy of cereal fungicides in dense canopies

Pulse Penetrant improves uptake of herbicides into the leaves through stomatal flooding and penetration into concealed places of plant material too hard to reach with ordinary surfactants. Pulse is the adjuvant of choice for use on some woody weeds such as lantana, gorse, blackberries and many others. Generally, these weeds are hard to kill not because the recommended herbicides don’t work on them, but because standard spray solutions have physical difficulties in penetrating those places where they would be most effective.

Pulse Penetrant optimises the entire wetting of the plant and is the integral ingredient of the spray solution required to spread it where it will work best as well as improving uptake of the herbicide into the weeds.

Usage guidelines:
Pulse should not be used as a general purpose surfactant, it is a specific adjuvant for certain uses. Organosilicone surfactants are impacted by hydrolysis. The stability of Pulse Penetrant is therefore affected by the pH of the solution, with degradation in acidic (pH 2-5) and alkaline (pH 8-9) spray solutions.

When mixed into solutions in a pH range below 5 or above 8, spraying should be preferably completed within 6 hours to minimise breakdown.

A typical mix rate is 200ml per 100L for wood weeds such as Gorse, Lantana, English Broom and Blackberry. Always refer to directions on the label.

Arborgreen has created a streamlined freight policy for customers Australia wide. Note: as of the 8th of September 2021 we have increased our standard freight charge due to rising freight costs. 

The policy is as follows:

  • Your order is under $400.00 +GST a standard $20.00 freight charge will be added. (ensuring that the goods you have purchased are not bulky^)
  • All orders over $400.00 +GST it will be delivered free of charge (ensuring that the goods you have purchased are not bulky^)

^Bulky items are classified but not limited to (long poles, or large heavy boxes/bales). In general bulky items are indicated as such on the product detail page.

Stock Control & Pricing Breaks

Our webstore now indicates an approximate level of items in stock. This is indicated as quantity breaks as follows: 1+, 6+, 12+, 36+, 100+, 250+, 500+, 1000+, 2000+ and 3000+. For example: if we have 5 ARS Florist Scissors in stock this would display as 1+ — if there are 47 in stock it will indicate 36+. As another example: if we have 14,960 Fluted Tree Guards in stock this would indicate as 3000+. The quantity also indicates the number of items as described by the product description; so Florist Scissors are sold individually whereas the 10L Carton Tree Guard is sold in boxes of 150 – in the later case 100+ items refers to 100+ boxes of 150 (or over 15,000 Carton Tree Guards in stock).

Please note: our webstore stock levels are accurate to within the last hour; if you order an item that has since sold out, we will promptly notify you as to when your order will be fulfilled. Some items may be indicated as Special Order items or display a custom message as to when stock is due.

Pricing breaks: many items in our store display pricing breaks. The number of items indicated in pricing breaks can vary a lot between different products. Often with horticulture tools such as secatuers and loppers, the pricing breaks may relate to the number of items in a box or total number of items in a carton; so if you need several secateurs, and order per box or carton, you save more as we save time packing your order. Items such as tree guards, bamboo canes and hardwood stakes often have price breaks set to fill a standard palette size; thus savings or efficiency gains are made in the storage and transport of these items.