Special note for Long Island, NY, counties

DuPont™ Acelepryn® insecticide in not currently registered for use in Nassau, Suffolk, Kings and Queens counties of New York state.

Golf course superintendents in those counties should continue with the following program that was proven effective during 2009.

First Generation Control

FIRST APPLICATION: The first application will call for an adulticide—usually a pyrethroid, but chlorpyrifos is also an option. This application will be based on degree days; however, be sure to carefully monitor for adults and check this Web site for proper timing in your area. 

SECOND APPLICATION: The second application of the DuPont OptimumControl Program for Long Island is the application of DuPont™ Provaunt® insecticide at 12 ounces per acre. The timing of this application will be roughly two to three weeks after the first application and will be based on degree day monitoring (check this Web site for proper timing in your area).

THIRD APPLICATION: The third component of the Long Island program targeting first generation ABW larvae is an application of DuPont™ Provaunt® insecticide during late May or June to control late hatching larvae. University turfgrass entomologists and private consultants from throughout the region will be monitoring ABW larval development, and this information will be available on this Web site.

The target of the Provaunt® application is the early third instar larvae as they emerge from the annual bluegrass stem and move to the crown of the plant.

Provaunt® applied at 12 ounces per acre will provide two to three weeks of residual control, which will complete the control program for first generation ABW larvae.

Control of Summer Generations

There is still some predictability of the dominant ABW life stages present in turfgrass. First-generation adults generally appear in late June and early July, making them obvious targets for another adulticide application featuring either a pyrethroid or chlorpyrifos product.

By the middle of July, ABW populations have usually become asynchronous—meaning that all life stages are present at the same time and there often is not a single dominant stage.

It is important to remember that the maximum yearly application rate forDuPont™ Provaunt® insecticide is 24 ounces per acre, so an alternative ABW larvicide should be applied if ABW larval populations reach damaging levels during July and August.