5807
A number of conservationists attribute the disappearance of milkweed species to agricultural practices in the Midwest , where genetically modified seeds are bred to resist herbicides that eliminate milkweed nearby .
 plant: milkweed species; location: Midwest; plant: genetically modified seeds
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 plant: milkweed species; location: Midwest; plant: genetically modified seeds