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Pest Problem Guide

Spider Mite Control

Neoseiulus fallacis Neoseiulus fallacis or Amblyseius fallacis

This predaceous mite has a strong preference for pest mite species and will travel from tree to tree searching for them.

Origin: Throughout the United States

Host Mites: Two spotted spider mites (Tetranychus urtichae), Pacific Mites (Tetranychus pacificus), European red mites (Panonychus ulmi), Bank's grass mite.

Host Plants: Fruit trees, strawberries, corn, hops, mint, other field crops.

Life Stages: Egg, Larvae, Protonymph, Deutonymph, and Adult. Completes a generation in one to two weeks depending on temperature.

Environment: Does best in warm humid conditions, but will also tolerate low humidity (40% - 80% at 50° - 105°F). Occurs naturally along coast and inland valleys of California.

Pesticides: N. fallacis susceptible to pesticides. Pyrethroids are highly toxic. Field tolerance will vary with spray timing, application methods, weather and crop. Avoid spraying crop one week before or after releasing predators. Some materials may be toxic to predators for up to four weeks.

Release rates: Release rates are being developed. Release at least one per plant or one per square foot in greenhouses at the first sign of spider-mites. Later releases will require much higher numbers to be effective.

Storage: N. fallacis Highly perishable, should be used immediately upon delivery. If storage is absolutely necessary, refrigerate at 50° F. (6°-10° C). Not to exceed 2 days, to minimize mortality.

This predatory mite disperses quickly. Neoseiulus fallacis is known to control European Red Mite below economic thresholds in fruit tree orchards. It is also being successfully used in mint fields.

151511Neoseiulus fallacis, 1000$44.50
151515Neoseiulus fallacis, 1250 on leaves$57.40
151521Neoseiulus fallacis, 2000$79.00
151525Neoseiulus fallacis, 2500 on leaves$96.50
151552Neoseiulus fallacis, 5000 on leaves$111.00
151571Neoseiulus fallacis, 25000$330.00


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Preferred Shipping methods: FEDEX 2nd Day or Overnight.

Cart orders that have anything other than 2nd Day or Overnight shipping will be upgraded.

Permit required for shipment to Hawaii and many countries outside the USA.

"Live & perishable product sales, once shipped are final, non-cancelable
and non-refundable, unless approved by a Biocontrol Network officer."

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