In late 2015 the Environmental Protection Agency issued the long awaited revision to the Worker Protection Standard (WPS). Although it is now technically active it will not be enforced until 2017 but the original WPS will still be enforced until the end of 2016. Please keep in mind that the WPS covers both restricted use AND general use pesticides. This article will deal with the highlights to the revision but also some areas of the current WPS that need emphasized.
There are an increasing number of reports of powdery mildew on a wide range of cucurbit crops across Pennsylvania.
Reports of downy mildew on cucumber continue to increase and now include Lancaster, Chester and Delaware Counties in PA as well as new reports on cucumber in NJ, NY, MI and Ontario, Canada. Earlier this week was the first report on cantaloupe in northeastern OH in Medina County. Disease spread is most likely in the northeastern and southeastern portions of PA in the upcoming days.
Material Safety Data Sheets (MSDS) have been renamed and are now referred to as Safety Data Sheets (SDS). According to the Occupational Safety and Health Administration (OSHA), the Hazard Communication Standard requires the new format starting on June 1, 2016. One of the primary reasons for the change is that OSHA requires all SDSs to use a standard format.
Join Penn State Extension for a special 20th Anniversary Are You Crazy? Retail Farm Market Bus Tour of the Finger Lakes region of New York on September 13 and 14, 2016. This tour is for retail farm market professionals and is held at the height of the season to enable participants to learn from their regional farm market peers during their best and most robust season. The 2016 event will include behind the scenes tours and information directly from farm market owners including unique display and merchandising ideas and information on market expansion and farm transition.
These reports of downy mildew are not surprising given the confirmed reports on cucumber in many of the surrounding states including multiple counties just south east of these reports in New Jersey, Maryland and Delaware. The infections likely occurred last week when the conditions were more favorable and symptoms are just now becoming visible. It is important to be scouting your cucumber fields frequently for symptoms.
Although late blight has not been yet confirmed in Pennsylvania this season, this past week it was confirmed on tomato in four additional counties, in Garrett County, Maryland just south of Somerset County, PA as well as in southern MD and two counties on the Delmarva Peninsula.
Downy mildew has most recently been confirmed on cucumber in Michigan, Delaware and New Jersey in addition to the reports last week from Ohio and North Carolina.
Basil downy mildew continues to be a constant challenge for growers especially as the growing season progresses and the number of confirmed reports across the region increases.
In the past few days downy mildew has been confirmed on cucumber in Kent County, Ontario and Wayne County, OH as well as numerous locations in North Carolina.
Damage from potato leafhoppers is showing up in strawberry and raspberry fields, and by some accounts, seemingly came out of nowhere. This pest moves up from the South in the spring, and by early summer is established in a wide range of crops in the Mid-Atlantic region.
The Tree Fruit Pathology Lab at FREC is seeking fire blight samples again this season from around the state of Pennsylvania in commercial orchards and home landscapes for evaluation for antibiotic-resistant strains of the bacteria and other projects. If you have fire blight present in your orchard/yard, please contact Dr. Kari Peter for instructions for sampling.
Spotted wing drosophila has been found in very low numbers in the Mid-Atlantic and Northeast, so it’s time to be watching for spotted wing drosophila presence in raspberries, blueberries, and other thin-skinned fruit. A few Pennsylvania growers reported finding larvae in late-season strawberries.
We all get a little rusty as we get older, but one thing that we don’t want to see getting rusty is our brambles. There are several rust diseases that affect brambles. I’m just going to focus on orange rust, which is the most important rust disease in the northeast. We are definitely seeing a bit of orange rust this year, with the cool wet springs. You’ll see this disease on blackberries, black raspberries and purple raspberries. Orange rust does not affect red raspberries.
Yesterday downy mildew was confirmed in Caroline County, MD in a commercial cucumber field.
In May 2016, an aggressive form of black leg caused by the bacterial pathogen Dickeya dianthicola was confirmed in a potato seed lot being grown in New Jersey. This is the same pathogen that caused widespread yield losses across the region in 2015 when it was first confirmed in the U.S. It subsequently has been detected and confirmed in DE, PA, MD and VA this season. Pectobacterium atrosepticum which has long been associated with blackleg has also been detected.
Over the past several years, bacterial diseases have become an increasing problem in tomato and pepper fields across Pennsylvania. Last year it was tomato while this year is seems to be more on pepper depending on where you are in Pennsylvania.
Bumble bees have discriminating palettes when it comes to their pollen meals, according to researchers at Penn State. The researchers found that bumble bees can detect the nutritional quality of pollen, and that this ability helps them selectively forage among plant species to optimize their diets.
Bees and bee health are still making headlines, and sorely needed research results are finally starting to emerge. In early May, Horticultural Research Institute participated in a research symposium at Penn State University where early results from several research projects relevant to pollinator health were shared.
A new smartphone application, called MyIPM-NED, was developed to promote integrated disease management for apples, pears, cherries, and cranberries and is available for free for Android and iOS devices. These apps are also able to be used on tablets, as well.