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An insecticide free solution for silverleaf whitefly suppression

CottonCAP® capsules contain 500 beneficial parasitoids (Eretmocerus hayati) that parasitise silverleaf whitefly (SLW); a multi-step process that ultimately results in the death of the host insect and the emergence of subsequent generations of parasitoids to provide ongoing suppression of pest populations.

Why choose CottonCAP®?

Reduce SLW populations early in the crop cycle.

Reduce, delay or eliminate the need for chemical insecticides

Prevent SLW resistance to chemical insecticides

Nil impact on non-target species and other beneficial insects due to specificity of E.hayati to SLW

Quick and even distribution of E.hayati by air using precision placement technology

Cost-effective management of SLW

Our pioneering capsule containment system is crafted entirely from renewable, compostable and biodegradable materials

Promotes eco-friendly cotton farming by protecting soil health and water quality

How CottonCAP® works


  1. Monitor: Consultants or growers monitor the cotton crop for the first signs of nymph or adult SLW by closely inspecting the undersides of cotton leaves.
  2. Order capsules: At first detection of SLW, contact Crop Capsules to order CottonCAP® and arrange aerial application.
  3. Distribute: Capsules, filled with parasitic wasp pupae (an even split of males and females) are quickly and evenly distributed across the field by air.
  4. Emerge: Capsules protect parasitic wasps during application and emergence over 5 days
  5. Reproduce: Capsules provide a convenient, safe and productive environment for mating wasps
  6. Parasitise: Fertilised female wasps lay their eggs under the SLW nymphs.
  7. Kill host: E.hayati larvae hatch from eggs and penetrate the nymph bodies, where they develop through four instars before pupating inside the nymph.
  8. Emerge: When the adult is ready to emerge, it chews a circular hole in the nymphal case to escape.
  9. Ongoing suppression: Adult wasps then seek out partners to mate with and the cycle continues, providing ongoing suppression of SLW.

Application Timing

  • A preemptive inoculative release coinciding with the first and second generation of SLW is the most effective way to prevent SLW outbreaks in your crop.
  • Start monitoring the crop for signs of SLW activity at pre- or early flowering (around 1000DD).
  • First signs of nymph or adult SLW can be can be detected by closely inspecting the undersides of cotton leaves. 
  • SLW population densities can increase rapidly in hot, dry conditions.

Application Rate

  • 1 – 2 capsules per ha
  • In some cases, multiple releases may be required to provide adequate suppression, particularly if reinfestations of SLW from outside sources occur.

Application Method

  • CottonCAP® capsules are released across fields using a light aircraft equipped with a purpose-built hopper, ensuring quick and even distribution through precision placement technology.
  • We have a network of approved aerial operators and light aircraft fitted with capsule-spreading technology.

Information at a Glance

Download our Technical Content

Our capsules are compostable

Designed and manufactured in Australia

Applied using light aircraft