raspberries and strawberries

Image Credit: Mike Watson Images/moodboard/Getty Images Organic produce costs as much as 40 percent more than conventional produce, according to Colorado State University. Deciding which produce items to buy organic is important, for both your wallet and your health. The Environmental Working Group reports the conventional produce containing the highest level of pesticides in their annual publication, the Dirty Dozen.

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Peaches
   
peaches

Image Credit: monica-photo/iStock/Getty Images Biting into a fuzzy, sweetly flavored peach is one of the pleasures of summer, but stick to only organic peaches. Conventional peaches were No. 1 on the Dirty Dozen list in 2009, and No. 2 in 2010. They contain 62 pesticides when produced conventionally.

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Strawberries
   
strawberries

Image Credit: blueenayim/iStock/Getty Images Strawberries have a thin, porous skin and are frequently imported from developing countries where lax regulations allow a high pesticide spray level. The laboratory tests for the Dirty Dozen found that strawberries contained 59 pesticide chemical types.

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Apples
   
box of apples

Image Credit: Vaclav Mach/iStock/Getty Images The peel of conventional apples contains the highest level of pesticides, but it also contains the nutrients. Instead of peeling apples, opt for purchasing the organic variety to avoid the 42 pesticide chemicals found in non-organic apples.

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Blueberries
   
blueberries

Image Credit: iSailorr/iStock/Getty Images Blueberries are an additional berry type that contain a high level of pesticides. The thin skin allows the chemicals to enter the fruit’s flesh. Buying blueberries organic is the safest option. Conventional blueberries contain 52 pesticide chemicals.

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Nectarines
   
nectarines on table

Image Credit: al62/iStock/Getty Images Nectarines are a close relative of the peach, which may be an easy way to remember that both fruits should be purchased organic. Nectarines contain about 33 chemical pesticides, according to the Dirty Dozen list.

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Cherries
   
cherries

Image Credit: masyusha/iStock/Getty Images Domestic cherries contain a particularly high level of pesticide residue compared with imported cherries. Purchase organic cherries to avoid the chemicals and benefit from their qualities, such as vitamin C and fiber.

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Grapes
   
grapes

Image Credit: aykuterd/iStock/Getty Images The Environmental Working Group discovered that imported grapes have a particularly high concentration of pesticide residue and should be avoided. They contain about 34 chemicals.

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Rasperries
   
raspberries

Image Credit: olgakr/iStock/Getty Images Raspberries are a healthy addition to the diet because they are high in fiber and vitamins, but the thin skins make them vulnerable to chemical absorption. Purchase organic versions.

Pears
   
pears

Image Credit: robert van beets/iStock/Getty Images Conventional pears contain 28 chemicals. Buying organic pears is particularly important for pregnant and breastfeeding women, because pesticides interfere with normal growth and development.

Tomatoes
   
tomatoes

Image Credit: Paolo Conti/iStock/Getty Images Tomatoes are a popular thin-skinned fruit that absorb any chemical sprays applied to them during production. To avoid consuming chemicals, always buy organic tomatoes.

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  references
  
      PBS: The Dirty Dozen and Clean 15 of Produce
    
      Environmental Working Group: When Should You Buy Organic?
    
      Colorado State University: Farmers' Market Options: What You Really Get
       




  references
  
      PBS: The Dirty Dozen and Clean 15 of Produce
    
      Environmental Working Group: When Should You Buy Organic?
    
      Colorado State University: Farmers' Market Options: What You Really Get
    




raspberries and strawberries

Image Credit: Mike Watson Images/moodboard/Getty Images

Image Credit: Mike Watson Images/moodboard/Getty Images

peaches

Image Credit: monica-photo/iStock/Getty Images

Image Credit: monica-photo/iStock/Getty Images

strawberries

Image Credit: blueenayim/iStock/Getty Images

Image Credit: blueenayim/iStock/Getty Images

box of apples

Image Credit: Vaclav Mach/iStock/Getty Images

Image Credit: Vaclav Mach/iStock/Getty Images

blueberries

Image Credit: iSailorr/iStock/Getty Images

Image Credit: iSailorr/iStock/Getty Images

nectarines on table

Image Credit: al62/iStock/Getty Images

Image Credit: al62/iStock/Getty Images

cherries

Image Credit: masyusha/iStock/Getty Images

Image Credit: masyusha/iStock/Getty Images

grapes

Image Credit: aykuterd/iStock/Getty Images

Image Credit: aykuterd/iStock/Getty Images

raspberries

Image Credit: olgakr/iStock/Getty Images

Image Credit: olgakr/iStock/Getty Images

pears

Image Credit: robert van beets/iStock/Getty Images

Image Credit: robert van beets/iStock/Getty Images

tomatoes

Image Credit: Paolo Conti/iStock/Getty Images

Image Credit: Paolo Conti/iStock/Getty Images

      PBS: The Dirty Dozen and Clean 15 of Produce
    
      Environmental Working Group: When Should You Buy Organic?
    
      Colorado State University: Farmers' Market Options: What You Really Get