---
title: Tech Note - Corteva Transfrom Mirids and Aphid Control in Lucerne - 251027
canonical: https://fernland.com.au/documents/642/
dateModified: 2026-07-12 07:54:40
summary: Technical Sheet
type: tech_sheet
---

# Tech Note - Corteva Transfrom Mirids and Aphid Control in Lucerne - 251027

> Technical Sheet

Transform® Isoclast® active
INSECTICIDE

MIRIDS AND APHID
CONTROL IN LUCERNE

Transform® Isoclast® active
Insecticide for control of mirids
and aphids in lucerne

Australian lucerne growers now have a new option
to control aphids and mirids in their production
system. Transform® Isoclast® active is an effective
option to control insect pests resistant to traditional
insecticides, such as blue green aphid, whilst being
IPM compatible.

Mode-of-action
Transform Isoclast active Insecticide (500 g/kg
sulfoxaflor) is a unique Group 4C (sulfoximine)
mode-of-action insecticide with excellent user,
crop and environmental safety features.

Absorption and translocation
• Transform Isoclast active has very good
translaminar and acropetal activity.
• Transform Isoclast active will move up the plant
via the xylem, so it will move to new growth.
• Transform Isoclast active will not move down
to the lower leaves and roots.
Therefore, spray coverage is critical to ensure
the pests contact the spray or treated leaves.
Aphids and mirids may survive on untreated leaves
lower in the canopy.
Applying Transform Isoclast active in water rates
that provide superior coverage will achieve
a better result.

[Image: Bee on lucerne flower]

Impact on beneficials insects
• Avoid direct contact to bees. Transform Isoclast
active is toxic to bees and wasps if contacted
directly, however, once the spray deposit is dry,
there is minimal impact. Time the application
of Transform Isoclast active when bees are not
foraging. Avoid physical spray drift onto hives.
• Transform Isoclast active will help preserve
beneficial insects in the crop. It is a much
softer option than traditional, non-selective,
organophosphate, and synthetic pyrethroid
insecticides.
• Transform Isoclast active has minimal impact
on predatory mites, spiders, and other insects.
• Maintaining beneficial insect populations can
be particularly effective at reducing the number
and frequency of sprays needed during a season.

Directions for use

| CROP | PEST | RATE | CRITICAL COMMENTS |
| :--- | :--- | :--- | :--- |
| | | SC (mL/ha) | WG (g/ha) | |
| Lucerne | Mirids (including brown mirid, green mirid, and yellow mirid (apple dimpling bug)) | 200 - 300 | 100 - 150 | Use the lower rate when infestation is predominantly nymphs. Use higher rate when control of adults and/or residual control is desired. |
| | Aphids (including blue green aphid, pea aphid and spotted alfalfa aphid) | 100 | 50 | Apply when the pest reaches threshold levels. |

This table is adapted from the Transform® Isoclast® active label to include the rate of Transform® WG Isoclast® active.

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Always read and follow the label.

***

Transform® Isoclast® active
Mirids and aphid control in lucerne
INSECTICIDE

Directions for use cont.
DO NOT apply no more than 2 applications
of Transform® Isoclast® active per season.
DO NOT apply consecutive applications of Transform
Isoclast active when targeting aphids. If required,
apply an alternative mode-of-action insecticide
between Transform Isoclast active applications
to control aphids.
Corteva recommends a minimum 50 L/ha water
volume for ground application and 30 L/ha for
aerial application. Higher water volumes for ground
application are recommended as the crop size
increases to achieve optimum coverage.

Compatibility
Transform Isoclast active has been used successfully
by broadacre and horticulture growers to control
various sucking pests for many years and no physical
product incompatibilities have been reported.
Please contact your advisor if you have any product
compatibility questions.
Spray water should be taken from a clean source
and within the 5-9 pH range.
Recommended mixing order:
1. Water conditioners (if required).
2. Transform Isoclast active.
3. EC’s and oils.
4. Water soluble products.
5. Wetting agents.

Rainfast period
Transform Isoclast active is rainfast within 2 hours
of application. The spray deposit should be allowed
to dry prior to a rainfall event.

Re-entry period
People may re-enter the Transform Isoclast active
sprayed crop when the spray deposit is dry.

Grazing and stockfeed withholding period
Do not graze or cut for stock feed for 21 days
after application.

Summary
• Transform Isoclast active is a Group 4C
(sulfoximine) insecticide that provides excellent
control of aphids and mirids in lucerne.
• Transform Isoclast active is a Schedule 5
insecticide with improved user, crop,
and IPM features.
• For best results, apply Transform Isoclast active
early before numbers build.
• Ensure excellent coverage and use the higher rate
for adult mirids and longer residual activity.
• A minimum 50 L/ha water volume is required
but higher rates of 80 L/ha or more can improve
results when better coverage is achieved.
• Avoid direct contact with bees. Ensure application
will be dry before bees are foraging.
• Spraying in the evening avoids bee contact
and high (over 30°C) day temperatures.
• Growers may apply a maximum 2 applications
of Transform Isoclast active per season.
• If spraying for aphids, do not apply 2 consecutive
Transform Isoclast active applications.
• Transform Isoclast active does not persist
in the environment.
• Transform Isoclast active is a proven wettable
granule formulation and therefore compatibility
is excellent. However, Corteva recommends
growers conduct a bucket test or ask their advisor
if unsure.
• Please read the Transform Isoclast active label
thoroughly and apply as described.

[QR Code: Scan to view the full product label for Transform Isoclast active Insecticide.]

Call  or visit
Always read and follow the label.

Transform® Isoclast® active is a registered trademark of Corteva Agriscience™ and its affiliated companies. © 2023 Corteva. December 2023. FR10871.