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Aphid Banker plants


Description: Banker plants are plants that are different from the primary crop being grown. They assist in establishing, supporting and maintaining a population of one or more biological control agents that are released on the banker plants. Banker plants support the biological control agents with pollen or other plant material, or a host pest that doesn’t affect the primary crop grown.

Use in Biological Control: The aphid banker plant system is an open rearing system. For it to be most effective, the banker plants need to be introduced as early in the crop as possible before aphids appear. The system is based on introducing cereal aphids into a greenhouse on cereal plants (i.e., rye, barley, wheat). Cereal aphids only reproduce on monocotyledonous plants. Cereal aphids serve as a food source for the parasitic wasp Aphidius colemani, which reproduces on the cereal aphids.

Another benefit of the aphid  banker plant system is the plants attract outside naturally occurring aphid predators such as lady bugs, lace wings, syrphid flies and gall midges — especially during the spring. These predators are attracted by the aphids on the banker plants, even if there are no aphid pests present on the greenhouse crops. In traditional pest management programs, these naturally occurring predators would not survive pesticide applications.

For Best Results: Start the aphid banker plant system as early as possible in the crop cycle. Once the first banker plants are out in the greenhouse and inoculated with A. colemani, it takes another four weeks for the wasps to become reproductive. Introduce a minimum of one banker plant per acre per week or two every other week. The system is only successful when new banker plants are brought into the greenhouse. This supports continuous production of A. colemani, instead of having peaks and valleys in the number of wasps produced in the crop.

Having more banker plants doesn’t hurt. Many growers use higher rates, especially in April to ensure a high population of Aphidius in May when aphids are very active. Do not remove older banker plants until they start to die off. Rye and barley plants can last for eight to 10 weeks. Monitor the banker plants and make sure they are watered. Drip irrigation works the best rather than overhead watering.

SKU: Aphidius-Colemani-1 Category:


Plantsman produces and markets biological products. Production is carried out using innovative techniques under controlled quality assurance standards for the mass production of insects. All products are tested to meet specification requirements before leaving the factory.

The success of biological pest control is affected by the crop’s initial pest population (upon application of the product), weather conditions and chemical residue present in the crop, among other possible aggravating factors.

Under no circumstance shall Plantsman be liable for the outcome of the implementation in the field, as it has no control over local conditions, the application method, or the possible improper treatment/storage of the product.

We at Plantsman strive to deliver our bio control agents as fresh as possible. We ask that we’ll get all your orders on time to help us ensure the freshness of your deliveries. We understand the unpredictable nature of agricultural operations and that orders may not always arrive before the deadlines. The table below shows the latest we can get orders and guarantee delivery according to the specific beneficial. Please send us your orders as they come in regardless of the day. Due to the dynamics of our business, we may be able to find solutions to orders that will arrive after their cutoff time.

Orders placed on before the deadlines will be processed, and the delivery is guaranteed to arrive the following week. We will do our best to deliver orders placed later than the cutoff time but cannot guarantee. We usually fulfill any late orders including sometime orders that are sent during the weekend.

Diglyphus isaea
Encarsia formosa 5000 mummies
Encarsia formosa and Eretmocerus eremicus
Eretmocerus eremicus
Chrysoperla carnea 500 larvae in cells
Chrysoperla carnea 1000 larvae in cells
Chrysoperla carnea 2000 eggs on jute strings
Chrysoperla carnea 5000 eggs on card
Chrysoperla carnea 50K eggs bulk
Aphidius matricariae
Orius insidiosus
Phytoseiulus persimilis +
Phytoseiulus persimilis
Stratiolaelaps scimitus (Hypoaspis)
Amblyseius swirskii
Amblyseius andersoni mite
Steinernema feltiae Small Orders
Steinernema carpocapsae Small Orders
Heterorhabditis bacteriophora Small Orders

*Place orders no later than Thursday for delivery on Tuesday next 2 weeks. For large quantities, please alert us in advance. Holidays in the US and abroad and flights and carriers’ disruptions may affect delivery dates and time.

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