• Postemergence Management of Glyphosate-Resistant Horseweed in Soybeans
• Palmer Amaranth Control in Soybeans
• Harvest Aids for Small Grain

Postemergence Management of Glyphosate-Resistant Horseweed in Soybeans

Options for controlling horseweed (marestail) resistant to glyphosate after the soybeans have emerged are very limited. Liberty Link soybeans are an exception, because Liberty 280 is fairly effective on horseweed (be sure to keep your rates up and keep spray volume up to ensure good coverage).  [Read more…]

The early-planted corn fields should have been sprayed postemergence for later emerging weeds. In later planted fields, morningglories can be a challenge. Glyphosate is quite effective on small morningglories, but when they start to “run” or develop the vining growth habit, glyphosate is not as effective. If morningglories are an issue for your field, you should consider an additional 1.25 to 1.5 lbs of atrazine with your postemergence sprays in order to provide good residual control. However, this requires that applications be made before the corn is 12 inches tall. [Read more…]

Buggy-whipping in corn is a common sight early in the growing season and later under certain environmental conditions. The cause of buggy whipping is the abnormal formation of waxy leaf layers causing leaves to unfurl improperly. Agrichemicals and environment can cause this. [Read more…]

There have been many situations where both fomesafen (active ingredient in Reflex) and glyphosate will complement each other for weed control. Syngenta has a premix of fomesafen plus glyphosate called Flexstar GT. Also, Reflex and glyphosate can be tankmixed, but there have been some situations of these two products not mixing well. The following is an article from Ken Smith from University of Arkansas entitled “Problem Solving Incompatible Tankmixes of Glyphosate and Reflex®”

Some growers have experienced cottage cheese spray mixtures when Reflex® and glyphosate were tankmixed in an effort to burn down existing weeds while applying Reflex® prior to cotton or soybean planting.

If a mistake is made and Reflex® and the potassium salt of glyphosate is mixed and found to be incompatible, it can likely be brought back into solution by adding household ammonia. Start with 1% ammonia and begin agitation. More ammonia may be added if needed.

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Date: June 10, 2014 5:30-8:45pm
Location: Donaldson Farms, 358 Allen Road, Hackettstown, NJ 07840.

Third Annual North Jersey Twilight Fruit Meeting Featuring Strawberries and Tree Fruit.
Meeting will be held rain or shine.
Please RSVP to Diana Boesch at (908) 788-1339.
Registration Donation: $10.00 – Payable at the Meeting.

Potato Disease Forecasting Report 6-6-14 – Click to Download

We will be tracking DSVs for Late blight development and calculating P-days for initiating the first early blight fungicide application.

The first late blight fungicide application is recommended once 18 DSVs accumulate from green row. Green row typically occurs around the first week in May in southern New Jersey. An early season application of a protectant fungicide such as mancozeb (Dithane, Manzate, Penncozeb) or Bravo (chlorothalonil) as soon the field is accessible is suggested. Please be vigilant and keep a look out for suspect late blight infections on young plants. No late blight has been reported in our region to date.

Remember the threshold for P-days is 300!  Once 300 P-days is reached for your location early blight fungicide applications should be initiated. Growers who are interested in using this model should chose the location above that is closest in proximity to their farming operation and should regularly check the Cornell NEWA website (http://newa.cornell.edu/) where this information is compiled from. Click on Pests Forecasts from the menu, select your weather station, and click on tomato diseases, set accumulation start date and a table of daily and total DSVs will be generated.