What makes our crops prone to pests a pest being any

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Unformatted text preview: species par9cularly prone to herbivory by insect pests? Insect pests can cause serious economic problems (e.g., corn rootworm) What makes our crops prone to pests? (a pest being any unwanted organism – plant or animal) -   Monocultures (same species over large area) -   Effec>vely limitless food availability for an insect for which this crop is a feed plant -   Simplified communi>es and associated food webs -   Most of the crops we grow are of the same gene>c strain, making them very prone to disease and pests -   In several crops, breeding over millennia has reduced natural defenses, such as toxins, that occur in wild popula>ons of crop species to make them more edible to us. What makes our crops prone to pests? (a pest being any unwanted organism – plant or animal) II. COMPETITION WITH WEEDS 1) Most of our crops are: (A)  K strategists (B)  r strategists 2) Why did early farmers select predominately species with this life history strategy?...
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