Sumi-Alpha Flex 20L

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1 $52.50
20 $22.50
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Sumi-Alpha Flex 20L 

Sumi-Alpha Flex  is a broad spectrum synthetic pyrethroid insecticide that contains esfenvalerate as its main active ingredient.
Esfenvalerate is the most active of four isomers of fenvalerate, which makes Sumi-Alpha Flex a highly active product at extremely low use rates.

As is evident from its extensive label, Sumi-Alpha Flex is an extremely versatile insecticide which has the ability to control a range of insects and mites from a diverse range of insect families; larvae & grubs, aphids & jassids, beetles, thrips and also mites.

Sumi-Alpha Flex is a dual purpose formulation, and can be used as a ULV (concentrated) or EC (conventional, mixed with water) application. There is no need for growers to stock a “spring specific” ULV formulation.

Please download Product brochure here: Sumi-Alpha flex brochure

Please download MSDS: Sumi-Alpha Flex MSDS 

APVMA PERMIT:  Permit for Sumi-Alpha-Flex

Available in 20L (Price is per 1L)

Delivery charges apply.

*** Available now for late-season insect and mite control in lucerne and pastures, barley, canola, chickpea, fava-bean, linseed, lupin, oat an d wheat crops.
File Title File Description Type Section
sumialpha-flex_br.pdf Sumi Alpha Flex Brochure Brochures Document
sumialpha-flex_msds.pdf Sumi Alpha Flex MSDS Sumi Alpha Flex MSDS Specifications Document
PER81949_Sumi.pdf Sumi Alpha Flex Permit Sumi Alpha Flex Permit Specifications Document

Psyllids in Olive Trees


Psyllids in Olive Trees

I found this yesterday in my olive trees. It was wrapped between the green and brown olive flower shoot shown in the photo and adjacent leaf. It was held together by a frizzy sort of substance. Same as the previous ones observed, however previously I have found live grubs but this 1 is still in the cocoon?

About Psyllids

Psyllids, also known as jumping plant lice or lerp insects, are sap-sucking insects related to whiteflies, aphids and scale insects.

In Australia, there are hundreds of species of psyllid, most of which are of not of any economic significance. Most psyllid species are host specific and live and feed only on a group of closely related plants or a single tree species), including the psyllids which feed on eucalypts.

Life Cycle

Adult psyllids (2 - 8 mm long) hold their wings roof-like over their bodies and look a little like miniature cicadas. Although the adults are highly mobile, many species are poor fliers and rely on wind for dispersal over large distances. Both nymphs and adults feed on the sap from leaves or shoots. Female psyllids generally lay yellow, brown or black stalked eggs on leaves or buds, either singly or in clusters, rows or circles.

After hatching, the nymphs find suitable feeding sites where they remain, feeding and developing through five nymphal stages, before emerging as adults.

There may be two to six generations per year, depending on the species.

Infestation can be triggered by the stress of transplanting, or the young olive treess may have been kept in tubes or pots for too long. Unless the infestation is very severe, the olive trees will usually outgrow the problem. They have rarely caused much damage in the past, but they should be monitored carefully, as there is some evidence that their potential as pests in plantations may have been underestimated.


Psyllids feed by sucking sap from leaves and shoots resulting in premature leaf and flower drop and can have an impact on yields. Although this may cause local discoloration or malformation, they have little effect on their host plants when population levels are low.   They can be damaging in large numbers.

The nymphs of some psyllids can produce excess sugary secretions called “honeydew”.  These secretions attract ants and other insects that feed on honeydew.  Sooty mould may also develop on these secretions, blackening the leaves and reducing photosynthesis.


Natural enemies include parasitic wasps, hoverfly larvae, lacewings, ladybird larvae, ants, and spiders. Many birds also feed on psyllids including honey-eaters, thornbills, pardalotes, and rosellas. 

High psyllid populations collapse eventually either as a result of changes in the weather conditions or the depletion of suitable foliage due to feeding damage and premature leaf fall.  Once the population starts to decline, the influence of natural enemies.

Insecticides can be useful to help control psyllids while the trees are small and the outbreak has been caught early.  Usually by the time the damage is noticeable it is usually too late to take effective action.  When new foliage appears monitor the new growth and take action if there are presence of psyllids.

Application of seaweed solution can assist with removing the sooty mould whilst helping the stressed tree.