Basil downy mildew – 24c’s granted for Subdue Maxx and Heritage use in greenhouse

Special local needs labels (24c) have been granted for the use of Subdue Maxx (mefenoxam, 4) and Heritage (azoxystrobin, 11) for downy mildew (Peronospora belbahrii) on basil transplants grown for resale to consumers in New Jersey. Micora (mandipropamid, 40) also has a supplemental label for the control of basil downy mildew in the greenhouse. In order to use these fungicide, growers must have in their possession the 24c labels. Please see label for specific rates, REI’s, and PHI’s. Please here click on Subdue Maxx, Heritage, or Micora for links to the 24c label.

New Downy Mildew Grant Award will Aid Growers

For the past 6 years, Rutgers has led efforts in the breeding of sweet basil for resistance to downy mildew. Currently, basil downy mildew threatens 100% of the basil acreage in the US and other parts of the world.

Rutgers University, along with researchers at Michigan State, University of Florida, Oregon State University, Cornell University, California State University, and North Carolina State University as well as the USDA Agricultural Research Service have been awarded a $2.3-million USDA grant to help fight downy mildew in a number of highly valuable crops. The announcement from MSU who leads this effort can be found on MSU Today. 

Vegetable Diseases of the Week – 6/14/15

This week:
Sweet Basil – Basil downy mildew
Bell Pepper – Bacterial leaf spot

Symptoms of basil downy mildew infection on Sweet Basil

Symptoms of basil downy mildew infection
on Sweet Basil.

Basil downy mildew sporulating on the underside of infect basil leaf.

Basil downy mildew sporulating on
the underside of infected basil leaf.

Bacterial leaf spot of bell pepper

Bacterial leaf spot of bell pepper.

Basil Downy Mildew Reported: Southern New Jersey – 6/3/15

Basil downy mildew (Peronospora belbahrii) has been found in a field near Vineland, New Jersey. This is the first report of downy mildew in field-grown basil in New Jersey this year. All basil growers need to scout on a daily basis and initiate a preventative fungicide program.

Basil Downy Mildew Confirmed in New Jersey 6-13-14

Basil downy mildew has been reported for the first time this season near Millville, NJ in potted Thai and Cinnamon basil plants being sold at big box stores, as well as in sweet basil located in grower field. All basil growers in New Jersey should scout their fields on a daily basis. [Read more…]

Vegetable Disease of the Week

Basil Downy Mildew

Symptoms of downy mildew on infected Sweet basil leaf.

Symptoms of downy mildew on infected Sweet basil leaf.

Basil downy mildew sporulating on the bottom side of an infected leaf. (Note the purplish-brown spore masses)

Basil downy mildew sporulating on the bottom side of an infected leaf.
(Note the purplish-brown spore masses)