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Maneb, Maneb+Zinc, & Manex - 2ee Recommendation for Control of Bacterial Leaf Spot on Peppers 6/93

New York State Department of Environmental Conservation
50 Wolf Road
Albany, New York 12233

								June 18, 1993

Donald Rutz, PhD
Associated Professor of Veterinary
  Entomology and Director
Pesticide Management Education Program
Cornell Cooperative Extension
5123 Comstock Hall
Ithaca, NY  14853-0901

Dear Dr. Rutz:

Re: FIFRA 2 (ee) Recommendation for Maneb 80 (EPA Reg. No. 4581-255); Maneb
Plus Zinc F4 (EPA Reg. No. 4581359); and Manex (EPA Reg. No. 1812-251) for
control of bacterial leaf spot (Xanthomonas campestris pv. vesicatoria) on
peppers

The New York State Department of Environmental Conservation has approved
(copies enclosed) your request for a FIFRA 2 (ee) recommendation for Maneb 80
(EPA Reg. No. 4581-255); Maneb Plus Zinc F4 (EPA Reg. No. 4581-359); and Manex
(EPA Reg. No. 1812-251) for control of bacterial leaf spot (Xanthomonas
campestris pv. vesicatoria) on peppers.

The labels of these fungicides do not include bacterial leaf spot in the list
of controlled diseases, but do include directions for application to peppers.

Please contact Donna Kinney or Frank Hegener of my staff (518\457-7446) if you
have any questions.

Sincerely,

Norman H. Nosenchuck, P.E.
Director
Division of Hazardous Substances
  Regulation

Enclosures

cc w/encls:  D. Rapp, NYS Dept. of Agriculture & Markets

***********************************************************************

Complete Recommendation as it will appear in the Cornell Recommendations:

streptomycin (before transplanting):
____________

 Ag ri-Strep       1 lb/100 gal

copper compounds:
________________

 Label will vary with formulation and manufacturer

copper compounds + maneb:
_________________________

 Maneb 80                    1.5 to 3.0 Ib
 Maneb Plus Zinc F4          1.2 to 2.4 qt
 Manex                       1.2 to 2.4 qt

Bacteria are seedborne on pepper. Chlorine seed treatment is recommended.
Use disease-free seed and a 1-yr rotation in the seedbed and field.
Antibiotic sprays can only be used on seedlings before transplarlting.
Sprays can begin at the true leaf stage and continue on a tight (3-5 day)
schedule. When using southern-produced transplants, use only
CERTIFIED TRANSPLANTS. Field sprays should begin shortly after
transplanting and repeated every 7-10 days. Bacterial spot is more
severe when warm temperatures and frequent rains occur. The combination
of copper compounds and maneb are of value in reducing spread where
disease incidence is low. Research has shown that coppers are
more effective when combined with maneb. Disk the field as soon as
possible after the growing season. This will speed the breakdown
of crop debris that harbors the bacteria and minimize overwinterin
of the bacteria. Refer to Cornell Cooperative Extension Vegetable Crops
Fact Sheet, pg. 736.10,1985, Bacterial Spot of Pepper.