Orius is a predatory bug that feeds on many species of small, soft-bodied insects. Orius pierces its prey with its mouthparts and sucks out the body fluids of its prey. If prey is abundant, Orius kills more thrips than it needs to survive. The presence of pollen favors development of Orius, as it is an alternate food source. Orius can consume 5-20 thrips per day.
Adults are black and white and are about 2-2.5 mm (1/10 inch) long. The nymphs are first colorless, then later become yellow to brown. All stages have red eyes. The eggs are embedded in soft plant tissue and are not very visible. The fresh growing tips and side shoots are choice spots and the release of Orius should be done after side shoot trimming is done if applicable. All stages of Orius move quickly. Adults are great flyers and move efficiently to locate prey. The adults are attracted to flowers. Under ideal conditions each female adult could lay up to 45 eggs over a 2-week period.
Lifespan of Orius insidiousus:
A complete life cycle takes approximately 3 weeks. Sex ratio is usually 1:1. Females lay 2 eggs per day, and average about 130 eggs in their lifetime. Egg to adult usually takes 2-3 weeks. Cooler temperatures and lack of prey will slow development. Orius nymphs grow through 5 instars over 2-3 weeks, until they molt to the adult stage. Adults live for 3-4 weeks. Orius will diapause in the fall, when day lengths are less than 12 hours.
Once you have made it home with your Orius you MUST use them immediately. Orius cannot be stored. The presence of pollen favors development of Orius, as it is an alternate food source. Orius can consume 5-20 pests per day. If storage is necessary the unhatched bottles can be stored for an extra day, at a temperature of 50-60 degrees, laying the bottles horizontally, out of direct sunlight. In order to get an even distribution, the bottles should be gently shaken and turned before use. Spread the contents out on the soil surface and/or over the leaves. The material should then remain on the leaves for a few days, in order to give all Pirate Bug nymphs the chance to establish themselves in the crop. Spread the material evenly over the infested areas. In areas of heavier thrip infestation add extra bugs. Orius is delivered in bottles of 500 adults and nymphs usually mixed with buckwheat hulls and or vermiculite. Orius is somewhat cannibalistic and the medium serves as hiding places for the adults. Orius works perfectly together with other thrips predators such as Amblyseius cucumeris and Amblyseius degenerans. Avoid the use of systemic insecticides or pesticides with long residual action.
*Note: These rates are for preventative control only, multiple releases and/or higher quantities are necessary for heavier infestations. Click each product pic to get more information about that product.
|PRODUCT||QUANTITIES PER PACKAGE
||200 sq. ft.