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Contendor Systemic Insecticide 1L RTU

4 reviews|10 answered questions

$19.90

SKU: CONRTU

SKU: CONRTU

  • Dual-Action Formula: Provides systemic protection and contact control for garden pests.
  • Targets Sucking Insects: Effective against aphids, mealy bugs, scale, thrips, whitefly, and more.
  • Systemic Absorption: Absorbed into the plant, protecting it from the inside out.
  • Broad Application: Safe for use on flowers, shrubs, trees, fruits, and vegetables.
  • Active Ingredient: Contains Imidacloprid (0.125 g/L) for effective pest control.
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Description

Contendor Systemic Insecticide 1L RTU

Keep your garden free and clear from a variety of common garden pests with Contendor Systemic Insecticide! Formerly known as Confidor, this spray works 2 fold, by treating the plant systemically, absorbing into the plant rendering it toxic to insects that feed on the plant tissue, and also on contact with insects!

Use as a systemic pest preventer that targets sucking insects and for the systemic control of insect pests on flowers, shrubs, trees, fruit trees, and vegetables in the home garden!

Controls aphids, mealy bugs, scale, thrips, whitefly, and other sucking insects on ornamentals, roses, and vegetables. Contendor belongs to a new chemical group, so it is excellent to use in a spray program with other insecticides, as it controls pests resistant to older formulations.

  • Systemic action – absorbed through the foliage and moves throughout the plant to control insect pests – works from the inside out.
  • Good for spot treatment of pests.
  • Low-toxic, water-based formulation.
  • Easy to use trigger pack – no mixing required, no mess.
  • Target Pests include – Aphids, Scale, Thrips, Whiteflies, Azalea Lace Bug, Hibiscus Flower Beetle, Mealy Bugs, Psyllids, and Sap Sucking Bugs.

How does it work?

  • Systemic Absorption:
    • When applied, the insecticide is absorbed into the plant through its leaves, stems, or roots.
    • It spreads throughout the plant’s internal systems, making the plant itself toxic to pests that feed on it.
  • Target Pests:
    • The active ingredient targets sucking insects such as aphids, mealy bugs, scale, thrips, whitefly, and other pests.
    • These pests ingest the chemical when they suck the plant’s sap, effectively controlling infestations.
  • Contact Action:
    • In addition to systemic control, the product also has contact action, meaning pests that come into direct contact with the spray are affected immediately.
  • Versatile Use:
    • It is suitable for use on flowers, shrubs, trees, fruits, and vegetables, offering broad-spectrum pest control.

Did you know?

Unlike traditional insecticides, Contendor Systemic Insecticide doesn’t just sit on the surface of your plants—it works its way into the plant’s vascular system, providing long-lasting protection even in areas you might miss during application. Plus, it helps prevent secondary infestations by targeting pests before they have a chance to reproduce. It’s a smart, behind-the-scenes defender for your garden!

Ingredients

Active Constituent: 0.125 g/L IMIDACLOPRID

After something else? We’ve got plenty more in our Gardening range!

Additional information
Weight 1.1 kg
Dimensions 6 × 14 × 27 cm
Brand

Bayer

ALL Product Type

Insect Control

,

Garden pests

Garden Supplies

Garden Pest Control

Q & A

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How does Contender work on Azaleas Gil Hirst asked on 26 March 2025

Hey Gil,
Contendor Systemic Insecticide works effectively on Azaleas through its dual-action formula. When applied to Azaleas, the insecticide is absorbed through the foliage and moves throughout the plant's system. This systemic action allows the active ingredient, Imidacloprid, to be distributed internally, providing protection from the inside out.

For Azaleas specifically, Contendor targets the Azalea Lace Bug, a common pest that affects these plants

The insecticide works in two ways:

1. Systemic protection: As the plant absorbs the chemical, it becomes toxic to insects that feed on the plant tissue, including the Azalea Lace Bug

2. Contact action: The spray also works on contact with insects present on the plant's surface.

To use Contendor on Azaleas, apply the ready-to-use spray thoroughly on the foliage, including the undersides of leaves where pests often hide. For persistent infestations, you may need to repeat applications every 7 to 14 days.

It's important to note that Contendor should not be applied to Azaleas when they are in bloom, as it can be harmful to bees

Carl answered on 27 March 2025 store manager
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Can you use this product on indoor tropical plants Kathleen Colligan asked on 15 March 2025

Hey Kathleen,
Contendor Systemic Insecticide can be used on tropical plants, but, you should avoid spraying Contendor indoors. If your plants need to be treated, our supplier recommends relocating the plants outside first, treating them, and then bringing them back inside once the solution has dried completely.

Carl answered on 27 March 2025 store manager
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Hello just wandering how ofter should I be spraying the Contendor please. Thanks Isabelle Nugara asked on 29 November 2024

Hey Isabelle,
Contendor Systemic Insecticide RTU is effective against pests like aphids, mealybugs, scale, thrips, and whitefly. Apply when pests are first noticed, ensuring thorough coverage of foliage, including the undersides of leaves. For persistent infestations, repeat applications every 7 to 14 days as needed. Always follow the product's label instructions for safe and effective use.

Carl answered on 19 December 2024 store manager
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Will Contenor kill Lilly Pilly Beetle? James Norton asked on 2 October 2024

Hey James,
The list of pests that Contendor Systemic Insecticide 1L will control includes: Aphids, Scale, Thrips, Whiteflies, Azalea Lace Bug, Hibiscus Flower Beetle, Mealy Bugs, Psyllids, and Sap Sucking Bugs.

Lilly Pilly Beetles are not mentioned anywhere on the packaging for insects controlled.

Carl answered on 9 October 2024 store manager
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I have hibiscus leaf mite, will this eradicate them on my hibiscus Kerrie asked on 3 August 2024

Hey Kerrie,
Contendor Systemic Insecticide 1L RTU is effective against various sap-sucking insects, including aphids, mealybugs, scale, thrips, whitefly, azalea lace bug, and hibiscus flower beetle. Its active ingredient, Imidacloprid, is absorbed through the plant's foliage and distributed systemically, providing internal defense against these pests for up to 14 days​.

However, it is not specifically labeled for controlling hibiscus leaf mites. Mites often require targeted miticides for effective control. Products containing active ingredients like abamectin, bifenthrin, or horticultural oils might be more suitable for managing mite infestations

Carl answered on 5 August 2024 store manager
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4 reviews for Contendor Systemic Insecticide 1L RTU

4.8
Based on 4 reviews
5 star
75
75%
4 star
25
25%
3 star
0%
2 star
0%
1 star
0%
1-4 of 4 reviews
  1. My indoor plants have a spider mite problem that I’ve been tackling for weeks. This product definitely kills the buggers, but I’m finding I need to spray more often than directed. I have found that a thorough spray of the entire plant, followed by a spray of the soil every 3-5 days is the best way to control spider mites. Still haven’t been able to eradicate them but their numbers are getting smaller and smaller. Just requires VERY regular use of systemic insecticide.

    (0) (0)
  2. Great service with fast postage!

    (0) (0)
  3. Product was what we wanted and arrived on time.

    (0) (0)
  4. Product as described and delivery great

    (0) (0)
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