Biocontrol Agent Recommended Release Rates

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Soil Pest Biocontrols

Release rates Sponge-Nematodes
Release Rates for Sponge-Nematodes — Legend | Menu
Classification Release information
Prevent 1000-2000/yd, mnthly, as needed.
Low 2000-3000/yd, tri-wkly, 2-3 times.
Med 3000-4000/yd, bi-wkly, 2-3 times.
High 4000-6000/yd, weekly, 3-5 times.
Maint 2000-3000/yd, mnthly, indef.
Garden 100% of rates listed.
Acre + 85-100% of rates listed.
Comments The rule-of-thumb rate of 1 million of a straight species per 2000 square feet. Species mixes treat half the area.
Release rates Solid-Nematodes
Release Rates for Solid-Nematodes — Legend | Menu
Classification Release information
Prevent 100,000/yd, mnthly, as needed.
Low 170,000/yd, tri-wkly, 1-2 times.
Med 240,000/yd, bi-wkly, 2-3 times.
High 350,000/yd, weekly, 3-4 times.
Maint 135,000/yd, mnthly, indef.
Garden 100% of rates listed.
Acre + 85-100% of rates listed.
Comments Specifically designed for for pot-to-pot releases in interiorscapes. That’s where it’s used mostly.
Release rates Atheta
Release Rates for Atheta — Legend | Menu
Classification Release information
Prevent 1-2/yd, mnthly, as needed.
Low 1-2/yd, tri-wkly, 2-3 times.
Med 2-3/yd, bi-wkly, 2-4 times.
High 2-3/yd, weekly, 3-4 times.
Maint 2000-3000/yd, mnthly, indef.
Garden 65-85% of rates listed.
Acre + 50-65% of rates listed.
Comments Single-point releases may be best as it helps ensure fast reproduction.

Spider Mite Biocontrols

Release rates Fallacis
Release Rates for Fallacis — Legend | Menu
Classification Release information
Prevent 5-9/yd, mnthly, as needed.
Low 10-18/yd, tri-wkly, 2-3 times.
Med 18-26/yd, bi-wkly, 2-4 times.
High 26-32/yd, weekly, 3-4 times.
Maint 3-6/yd, mnthly, indef.
Garden 25-45% of rates listed.
Acre + 5-30% of rates listed.
Comments Spring release are par for the course, but fall releases should be considered. They are effective in a preventive capacity.
Release rates Galendromus
Release Rates for Galendromus — Legend | Menu
Classification Release information
Prevent 5-9/yd, mnthly, as needed.
Low 10-15/yd, bi-wkly, 2-3 times.
Med 16-24/yd, bi-wkly, 2-4 times.
High 25-30/yd, bi-wkly, 2-4 times.
Maint 7-12/yd, mnthly, indef.
Garden 35-50% of rates listed.
Acre + 5-20% of rates listed.
Comments For use in very hot areas.
Release rates Longipes
Release Rates for Longipes — Legend | Menu
Classification Release information
Prevent 7-11/yd, mnthly, as needed.
Low 12-17/yd, bi-wkly, 2-3 times.
Med 18-26/yd, bi-wkly, 2-4 times.
High 27-32/yd, bi-wkly, 2-4 times.
Maint 7-12/yd, mnthly, indef.
Garden 35-50% of rates listed.
Acre + 5-20% of rates listed.
Comments For use in very dry areas.
Release rates Californicus
Release Rates for Californicus — Legend | Menu
Classification Release information
Prevent 9-13/yd, mnthly, as needed.
Low 14-19/yd, bi-wkly, 2-3 times.
Med Not suitable for use in this rate class.
High Not suitable for use in this rate class.
Maint 7-12/yd, mnthly, indef.
Garden 35-50% of rates listed.
Acre + 5-20% of rates listed.
Comments For use in areas where little to no prey mites exist. Works well for prevention. Also useful for other mites.
Release rates Feltiella
Release Rates for Feltiella — Legend | Menu
Classification Release information
Prevent 2-4/yd, tri-wkly, as needed.
Low 4-10/yd, bi-wkly, 3-4 times.
Med 12-18/yd, weekly, 3-5 times.
High 20-28/yd, weekly, 4-6 times.
Maint 4-6/yd, mnthly, indef.
Garden 75-85% of rates listed.
Acre + 50-65% of rates listed.
Comments Best used in conjunction with an oviposition stimulant (provided).

Release rates for Spider Mite Biocontrols continued on Next Page »

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