Rutgers Cooperative Extension
Do you ever wonder what is causing your cherrylaurel to look like Swiss cheese? Clearly, it’s not because Anatole has been hanging around. More than likely the shothole symptoms you see are caused by one of several pathogens and abiotic stresses common to other species of Prunus.
Shothole symptoms in cherrylaurel. Photo: Richard Buckley, Rutgers PDL
Vegetable IPM Report 5-07-14 – Click to View | Download | Print
Current Week’s Pest Maps – Available Maps for the week
Pepper Weevil Trap Catch Map
Rutgers Cooperative Extension IPM personnel are currently deploying blacklight trap and insect pheromone trap networks throughout the state. Statewide sampling will commence shortly, and as soon as target pests begin to appear, insect data will be published in the Plant and Pest Advisory and on the NJAES website @ http://tinyurl.com/njaes-ipm-maps
Pest populations of European corn borer (ECB), corn earworm (CEW) and brown marmorated stink bug (BMSB) from blacklight samples will be posted in table and in map format. Additionally, adult CEW populations from a pheromone network in southern NJ will be posted in both formats. Pepper weevil trap catches from southern NJ will be posted in map format. Beet armyworm (BAW) adult populations from a southern NJ pheromone network will be posted in table form beginning in mid-July.
When using blended products:
- Know the pest that you need to control.
- Use an appropriate insecticide that will do the job with as little negative impact as possible.
- Avoid broad spectrum insecticides when possible.
- Avoid using redundant materials.
Over the past decade, the number of vegetable insecticides (both commercial products and insecticide classes) has increased significantly. Included in these are a number of materials with novel modes of action (MOA), and high degrees of pest specificity. For example, some newer materials have efficacy against caterpillars only, while others may control caterpillars and some fly larvae. Other examples are detailed in the chart, Combination Insecticide Products for Commercial Vegetable Crops. This article clarifies the options in the Commercial Vegetable Recommendations so that growers may make more informed choices as to the most useful product for specific pests. [Read more…]
This week in Fruit IPM
- Peach
- Apple
- Pear
- Blueberry
- Scouting Calendar
- Trap Counts
The 2014 Potato and Tomato Reports are now available! Just scroll over the Vegetable Crops tab on the Plant and Pest Advisory homepage and links for each report will appear.
Like in years past, both reports will be updated twice a week for those interested in timing their fungicide applications according to Tom-Cast and Blightcast from NEWA information. Real-time updates can also be obtained by going directly to the NEWA site, selecting the nearest weather station to your farm operation, and clicking on the appropriate model. It is that simple! As always, should Late Blight appear in our region sometime this season a PPA Alert will be sent out to those signed up.
Basil downy mildew was reported in a greenhouse in Virginia last week. The first question I asked myself was, “How can that be?”
Basil downy mildew on overwintered sweet basil plant.
Note symptoms on leaf top side and downy mildew spores on leaf underside.
The infected plants in question, roughly 12 mature potted sweet basil plants, were just a few plants that were left over from last fall and carried over the winter in a non-heated high tunnel on benches with heated mats and row cover. The heated mats and row cover were for protecting other crops. Interestingly, the basil did not freeze out, somehow managed to survive the winter without much heat, and produce downy mildew spores once the outside temperatures rose.
[Read more…]
