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malathion (Cythion) Cancellation Notice 3/91


No. 1                                                           March 26, 1991

     The following information has been obtained from the National 
Agricultural Chemical Association regarding malathion.   Please note that they 
can not guarantee the accuracy of the following information.

     The Environmental Protection Agency published on 3/18/91 the Federal 
Register announcement of deletion of 85 food/feed crop uses and certain other 
uses of malathion insecticide, following withdrawal of reregistration support 
by the Malathion Reregistration Task Force (MRTF).  Written comments are 
solicited on this action by June 17, 1991.  Only the food and feed crops and 
formulations specified in List I below will be supported by the MRTF.  All 
uses in List II below will be dropped.  The two registrants (American Cyanamid 
and Cheminova) of technical malathion, used in manufacture of all malathion-
containing products, do not intend to provide the required residue data (for 
food and feed crops, tobacco, and stored commodities); the 90-day inhalation 
study (for indoor uses, stored commodity treatments, domestic animals, animal 
premises, and food-handling establishments); and domestic animal safety 
testing (for poultry uses).

     EPA notified  by registered mail  dated  2/25/91  all  registrants  of 
malathion-containing products that they have until 30 days from receipt of the 
letter to indicate their intention to provide the required data to support one 
or more of the uses to be dropped.  Otherwise all unsupported uses must be 
removed from their labels within 90 days of receipt of the letter.

     Commodity organizations may have to provide financial and/or material 
support to conduct the required studies.  Crop residue data are generally the 
easiest and least expensive to deal with.  However, if additional metabolism 
data will  be required or if concerns exist over the Acceptable Daily Intake 
(ADI), the cost and complexity of supporting these uses can increase 

     If any of these uses are important to vou, you must act quickly.   
Contact NOW WITHOUT DELAY William Steller or Barbara Gingher (609-799-6315) of 
American Cyanamid representing the Malathion Reregistration Task Force, or 
other registrants of malathion products to determine their interest in joint 
support for these uses.  Additionally, notify Joanne Edwards (703-308-8046), 
Reregistration Branch, Office of Pesticide Programs at EPA.  She has a list of 
malathion registrants.

List  I  - malathion uses supported by the Malathion Reregistration Task Force
(all  will  be supported for the 57% emulsifiable concentrate formulation 
(EC), and the indicated crops will  be supported on ultra-low volume (ULV) and 
ready-to-use (RTU) labels)

alfalfa (ULV)      corn (ULV)          green beans (ULV)     sorghum (ULV)
avocado            cotton (ULV, RTU)   lettuce               strawberries
bell peppers       cucumbers           onions                tomatoes
blueberries (ULV)  dry beans (ULV)     oranges               wheat (ULV)
cherries (ULV)     grapes              potatoes
clover (ULV)       grasses (ULV)       rice (ULV)

List II - uses to be dropped from all malathion labels

(FIELD USES)       macadamia nuts   beans                ANIMAL USES
almonds            mangoes          corn                 beef cattle
apples             melons           cucumber             cats
apricots           mint             lettuce              chickens
asparagus          mushrooms        onions               dairy cattle
barley             mustard greens   peppers              dogs
beets              nectarines       potatoes             ducks
birdsfoot trefoil  oats             summer squash        geese
blackberries       okra             tomatoes             goats
boysenberries      papayas          NON-FOOD USE         hogs
broccoli           parsley          tobacco              horses
Brussels sprouts   parsnips         STORED COMMODITIES   pigeons
cabbage            passion fruit    almonds              sheep
carrots            peaches          citrus pulp,         turkeys
cauliflower        peanuts          bagged               ANIMAL PREMISES
celery             pears            barley               beef cattle feed lots
chestnuts          peas             cattle feed con-       & holding pens
collards           pecans             centrate blocks    cat & dog sleeping
cowpeas            pineapples       field corn             quarters
cranberries        plums (fresh     field/garden seeds   dairy and livestock
currants           prunes)          grapes (raisins)       barns, stables, &
dandelions         pumpkins         oats                   pens
dates              quince           peanuts              feed rooms
dewberries         radishes         rice                 kennels
eggplant           raspberries      rye                  manure piles
endive             rutabagas        sorghum              poultry houses
figs               rye              sunflower            rabbits on wire
filberts           safflower        wheat                OTHER INDOOR USES
flax               salsify          FOOD-HANDLING        human clothing
garlic             shallots         ESTABLISHMENTS         (woolens & other
gooseberries       soybeans         bagged flour            fabrics)
guavas             spinach          (commercial/         mattresses
hops               squash            industrial uses)    FORESTRY USE
horseradish        strawberries     cereal processing    forest trees (douglas
kale                 (soil incorp.) commercial estab-      fir, eastern pine,
kohlrabi           sugar beets        lishments            hemlock, larch,
kumquats           sweet potatoes   dry milk               pines, red pine,
leeks              swiss chard        processing           spruce, true fir)
lemons             tangerines       eating establish-
lentils            turnips            ments
lespedeza          vetch            food processing
limes              walnuts          packaged cereals
loganberries       watercress       pet foods & feed
                   wild rice          stuff

         For additional information on the malathion cancellation notice 
contact the USDA-National Pesticide Impact Assessment Program at (202-447-