Argentine Stem Weevil

Scientific Name: Listronotus bonariensis

Order: Coleoptera

Description
The immature/larval stage of the Argentine Stem Weevil is a legless, creamy-white, active larvae up to 4mm in length. When mature the adult appears as a dark grey to black weevil with mottled grey body markings and a distinctive protruding snout, up to 3mm in length.

Biology and Lifecycle
Populations of Argentine Stem Weevil will have 2-3 generations per year, with the second and third generation often overlapping resulting in a large population at various life stages. Adult weevils emerge from overwintering sites between September and November. After mating the female weevil deposits several eggs under the leaf sheath of the host plant. Once the eggs hatch the larvae begin to feed inside the plant stem until they reach the second or third instar at which point the burrow out of the plant and drop to the ground. Once outside the plant the larva begins to feed at the base of the turf plant, ingesting plant material from the stems and crown. After the fifth instar is reached the larva pupates within the upper soil profile and the adult soon emerges. Adults then mate and lay the next generation of eggs, or over winter to resume the lifecycle the following season.

 

Products to Use Argentine Stem Weevil

Impede

Impede box

  0.1% Fipronil Impede Insecticide, containing the active ingredient Fipronil, gives turf managers the most effective and long-lasting control of these…

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Bifenthrin Granular

Bifenthrin tub use this

Bifenthrin granular provide effective and economical control of a range of turf pests including Lawn Armyworm, Sod Webworm, Argentine Stem Weevil,…

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Tempo Xtra

Tempo Xtra 5L (Straight)_RGB copy

Tempo® XTRA is a unique dual mode of action insecticide designed to control tough pests in Turf and Ornamental situations. In…

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Monarch Insecticide

Monarchcropped

For the control of Argentine Stem Weevil, Funnel Ant & Mole Crickets in Recreational, Domestic and Commercial turf.

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Spinner

Spinner

Spinner Turf Insecticide is a highly systemic insecticide providing rapid control of insect larvae and including Stem Weevil. Spinner can be…

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Suprathion 400

Adama suprathionv2

Suprathion 400 EC is an emulsifiable concentrate contact insecticide for the control of Red Scale, Soft Brown Scale, Soft Green Scale,…

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Tempo

TEMPO (2) copy

Tempo® residual insecticide containing the active constituent 2.5% Beta-cyfluthrin, provides control of various insect pests in turf and ornamental plants, for general…

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Pennside

pennside

Pennside containing the active constituent 240g/L Diazinon, provides effective control against Argentine Stem Weevil, African Black Beetle, Grass Eating Caterpillars and…

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Compel

Compel 2 sizes

Compel is a broad spectrum insecticide containing 100g/L of the active constituent Bifenthrin. It is registered for the control of Lepidoptera…

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Acelepryn

Acelepryn

Acelepryn provides safe and effective control of a wide range of turf damaging insects while also minimising the impact on the…

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