Columbia, Md.-based Certis USA has introduced a more potent formulation of its codling moth virus, CYD-X HP bioinsecticide.
The insecticide contains the naturally occuring virus, Cydia pomonella granulovirus, or CpGV, according to a news release.
CYD-X HP will be available this season to apple and pear growers in Washington, Michigan, Colorado and Idaho, according to Certis.
The virus is specific to codling moths and does not affect beneficial insects, fish, other animals or humans.
It also is compatible with mating disruption.
The new formulation contains nearly 1 trillion occlusion bodies per ounce.
Larvae need to only ingest or one two of these bodies before they die.
As a result, the product carries use rates as low as 0.5 ounces per acre. Each 6-ounce bottle comes with a window-strip calibrator for measuring the correct dose.
It is tankmix compatible with most other insecticides, fungicides and fertilizers.
The virus also is Organic Materials Review Institute, or OMRI, listed and is approved by the National Organics Program for use in organic production.
Nevertheless, insecticidal viruses are used on about 80 percent of conventional U.S. apple and pear acres, according to figures from Certis USA.