Carbamates:

Carbamates include pesticides such as sevin, aldicarb and carbaryl.

Widely used as:

  • they are more degradable than organophosphates
  • they have lower dermal toxicities. Mostly absorbed via inhalation, ingestion

 

 

Some carbamates are quite toxic. others less so. Carbaryl has low toxicity for mammals though Perimicarb is highly toxic to mammals but not readily absorbed through the skin.


Organophosphates, carbamates in jeopardy as FQPA deadline nears

The fruit growing industry is scrambling to provide enough data so the Environmental Protection Agency can make the most informed decision on how to implement the Food Quality Protection Act.

Although the EPA hasn't finally decided how it will implement the act, it has began the process reviewing tolerances - in particular, those for organophosphate, carbamates and B2 carcinogens.

EPA is also moving forward in other areas. FQPA calls for calculating aggregate exposures to pesticides with a common mode of action. It is including an additional safety factor of up to 10 times for children and infants when calculating tolerance for residues.

EPA has identified the top 20 foods consumed by non-nursing infants less than one year old and that will have the 10X factor applied. They include apples, peaches, pears, carrots, corn, potatoes, fresh green beans, tomatoes and peas.

A third area of emphasis for EPA is to look at cumulative exposure to a pesticide through contact with air, food, water, pets, household, lawn and garden products.

Farmers are really concerned about the potential loss of organophosphates. These are critical insecticides, and especially for the apple and blueberry industries. Apple growers use them to control plum curculio, leafrollers, codling moths and late-season apple maggots while blueberry growers use them for fruit flies late in the season. For both industries, alternative pest control measures are either non-existent, not economical or not thoroughly researched.

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