EPA decision regarding Belt insecticide

Greetings,

Bayer CropScience announced today that EPA will proceed with its decision to cancel the registration of the insecticide, Belt, which has been used to manage moth larvae in tree fruit systems such as codling moth, oriental fruit moth, and leafrollers. The decision does allow for existing stocks to be sold and used by growers, although there is no timeline or deadline provided for these activities. Any further information regarding this decision will be posted as it is available.

Section 18 Emergency Exemption for dinotefuran approved

On June 16, 2016 the EPA approved a Section 18 Emergency Exemption for use of the insecticide, dinotefuran, against brown marmorated stink bug in pome and stone fruit crops in Virginia. The two products included in this exemption are Venom Insecticide and Scorpion 35SL Insecticide. Per application, Venom can be used at rates between 4.0 and 6.75 oz of product (0.179 to 0.302 lb active ingredient) per acre and Scorpion at 8.0 to 12.0 fl oz of product (0.203 to 0.304 lb active ingredient) per acre. Restrictions include a maximum of two applications, a seasonal maximum of 0.608 lb active ingredient per acre (regardless of product used), and a minimum 7-day application interval. The restricted entry interval for both products is 12-hours and a 3-day pre-harvest interval must be observed for both. This compound is highly toxic to bees. This Section 18 for use of dinotefuran  in Virginia pome and stone fruit expires on October 15, 2016.

Link

Greetings,  We have just completed a guidance document for orchard crop growers that summarizes our current knowledge about relevant aspects of brown marmorated stink bug (BMSB) biology, monitoring, and management. This document was developed following a recommendation from the Stakeholder Advisory Panel for the Specialty Crops Research Initiative (SCRI) award for BMSB and is one of several documents that have or will be produced for the  different specialty crop groups of concern. To view this document, see: http://www.stopbmsb.org/where-is-bmsb/crop-by-crop/orchard-crops/ on the StopBMSB website. We hope this will be of value to you and welcome your feedback about it.

Section 18 Emergency Exemption for Bifenture EC, Bifenture 10DF and Brigade WSB in Virginia

On May 31, 2016, the Environmental Protection Agency approved a Section 18 Emergency Exemption for use of the bifenthrin-based products, Brigade WSB, Bifenture EC, and Bifenture 10DF against brown marmorated stink bug in apples, peaches, and nectarines in Virginia. This exemption applies only to the products mentioned above. These and other bifenthrin-based insecticides have a full Section 3 label for use in pears in Virginia. The requirements of this Section 18 are that applications must be made only during the post-bloom period and by ground only, at a rate of 0.08 to 0.2 lb active ingredient (a.i.) per acre, with not more than 0.5 lb a.i. per acre per season. These application rates equate to 5.12 – 12.8 fl oz of Bifenture EC, 12.8 – 32.0 oz of Bifenture 10DF, and 12.8 – 32.0 oz of Brigade WSB per acre, and seasonal maximums of 32 fl oz of Bifenture EC, 80 oz of Bifenture 10DF, or 72 oz of Brigade WSB. Multiple applications may be made per season, at a minimum re-treatment interval of 30 days. The REI is 12 hours and the PHI is 14 days. This insecticide is extremely toxic to fish, aquatic invertebrates and bees, and all precautions to avoid these exposures must be observed. Specifically, to help minimize exposure to pollinators, the following statement about the application timing must be observed, “Do not apply this product until after petal fall”. Since bifenthrin is considered one of the strongest insecticides against brown marmorated stink bug but can be disruptive to natural enemies of secondary pests, we recommend its use later in the season for apples, when stink bug populations are highest. In peaches and nectarines, its benefits might be best as fruit approach maturity, but outside of the 14-day PHI. This Emergency Exemption expires on October 15, 2016.

Plum curculio movement into orchards

Greetings, For the last couple of years we have experienced the kind of weather patterns during the apple bloom and post-bloom periods that are conducive to protracted movement of plum curculio into orchards from their overwintering habitat in adjacent woodlands. While many plum curculio may move into orchards more synchronously in years when conditions are warm and dry during the bloom, therefore resulting in good control when effective products are applied at petal fall, in a year like 2016, this pest may need to be targeted with additional sprays after petal fall, especially in orchards where pressure has been high in recent years. The warming pattern forecasted for next week may well result in increased curculio movement. In the northern regions of Virginia, next week will also bring the critical 250DD post-biofix timing for codling moth and in the central and southern regions, codling moth degree days will approach the 550 mark, at which the second half of first brood codling moth is targeted. Consequently, if both species require management at this time, the insecticides that are considered effective against both include, in alphabetical order, Assail, Calypso, Imidan and Imidan + Lannate.  In our Spray Bulletin for Commercial Tree Fruit Growers, we rate Avaunt quite strongly against plum curculio but somewhat less so for codling moth. Other products, such as many of the pyrethroids, are also rated well against both, as are some of the combination products that contain a pyrethroid and another active ingredient, such as Voliam Xpress or Endigo, although as always, we caution against using these broad-spectrum materials too early and/or too often in the post-bloom period, since secondary pest issues may result.

White peach scale seasonal biology and management

Greetings,  Research in the early 1970’s by Virginia Tech entomologist, Marvin Bobb, showed that white peach scale populations in the Charlottesville area produced first generation crawlers that were present during May. Second generation crawlers were found through July and those of the third generation were present from late August through September. The cool and wet conditions that have prevailed for much of April have likely slowed the rate of white peach scale egg hatch and nymphal development this year, so stone fruit orchards with a history of this pest can be treated for first generation crawlers now. Recommended materials for managing this pest include, in alphabetical order, Centaur, Diazinon, Esteem, Lannate, and Movento.

Brown marmorated stink bug survey for home and business owners

Greetings,  The Northeastern IPM Center and the BMSB IPM Working Group have created a survey to assess the issue with brown marmorated stink bug invasion of homes and businesses in the fall and winter and how folks have responded to it.  Regardless of whether or to what extend you have experienced this issue in past years, your feedback would be very helpful and most appreciated. The survey can be found at BMSB homeowner/business owner survey

 

Dinotefuran Section 18 approved for Virginia

On July 16, 2015  the EPA approved a Section 18 Emergency Exemption for use of the insecticide, dinotefuran, against brown marmorated stink bug in pome and stone fruit crops in Virginia. The two products included in this exemption are Venom Insecticide and Scorpion 35SL Insecticide. Per application, Venom can be used at rates between 4.0 and 6.75 oz of product (0.179 to 0.302 lb active ingredient) per acre and Scorpion at 8.0 to 12.0 fl oz of product (0.203 to 0.304 lb active ingredient) per acre. Restrictions include a maximum of two applications, a seasonal maximum of 0.608 lb active ingredient per acre (regardless of product used), and a minimum 7-day application interval. The restricted entry interval for both products is 12-hours and a 3-day pre-harvest interval must be observed for both. This compound is highly toxic to bees. This Section 18 for use of dinotefuran  in Virginia pome and stone fruit expires on October 15, 2015.

Section 18 Emergency Exemption for Bifenture EC, Bifenture 10DF, and Brigade WSB

On April 6, 2015, the Environmental Protection Agency approved a Section 18 Emergency Exemption for use of the bifenthrin-based products, Brigade WSB, Bifenture EC, and Bifenture 10DF against brown marmorated stink bug in apples, peaches, and nectarines in Virginia. Please note that this exemption applies only to the products mentioned above. Applications must be made only during the post-bloom period and by ground only, at a rate of 0.08 to 0.2 lb active ingredient (a.i.) per acre, with not more than 0.5 lb a.i. per acre per season. These application rates equate to 5.12 – 12.8 fl oz of Bifenture EC, 12.8 – 32.0 oz of Bifenture 10DF, and 12.8 – 32.0 oz of Brigade WSB per acre, and seasonal maximums of 32 fl oz of Bifenture EC, 80 oz of Bifenture 10DF, or 72 oz of Brigade WSB. Multiple applications may be made per season, at a minimum interval of 30 days. The REI is 12 hours and the PHI is 14 days. This insecticide is extremely toxic to fish, aquatic invertebrates and bees, and all precautions to avoid these exposures must be observed. Specifically, to help minimize exposure to pollinators, the following statement about the application timing must be observed, “Do not apply this product until after petal fall”. Since bifenthrin is considered one of the strongest insecticides against brown marmorated stink bug but can be disruptive to natural enemies of secondary pests, we recommend its use later in the season for apples, when stink bug populations are highest. In peaches and nectarines, its benefits might be best as fruit approach maturity, but outside of the 14 day PHI. This Emergency Exemption expires on October 15, 2015.

Bifenthrin Section 18 approved for apple, peach and nectarine in Virginia

Greetings,  On June 20 the Environmental Protection Agency approved a Section 18 Emergency Exemption for use of the bifenthrin-based products, Brigade WSB, Bifenture EC, and Bifenture 10DF against brown marmorated stink bug in apples, peaches, and nectarines in Virginia. Please note that this exemption applies only to the products mentioned above. Applications must be made by ground only, at a rate of 0.08 to 0.2 lb active ingredient (a.i.) per acre, with not more than 0.5 lb a.I. per acre per season. These rates equate to 5.12 – 12.8 fl oz of Bifenture EC, 12.8 – 32.0 oz of Bifenture 10DF, and 12.8 – 32.0 oz of Brigade WSB per acre. Do not apply more than 32 fl oz of Bifenture EC, 80 oz of Bifenture 10DF, or 72 oz of Brigade WSB per acre per season. Multiple applications may be made per season, at a minimum interval of 30 days. The REI is 12 hours and the PHI is 14 days. This insecticide is extremely toxic to fish, aquatic invertebrates and bees, and all precautions to avoid these exposures must be observed. This Emergency Exemption expires on October 15, 2014.