Background: In addition to insects, weeds have also been a menace to farmers - just ask anyone with a garden how much they hate weeds. They can quickly compete for water and nutrients needed by other plants. Sure, farmers can use herbicides to kill weeds, but do these chemicals also harm the crops? Can biotechnology help with this issue? Some crops have also been genetically engineered to acquire tolerance to the herbicides - allowing the crops to grow, but killing the weeds. But the lack of cost effective herbicides with a broad range of activity - that do not harm crops - is a problem in weed management. Multiple applications of numerous herbicides are routinely needed to control the wide range of weeds that are harmful to crops. And at times these herbicides are being used as a preventive measure – that is, spraying to prevent weeds from developing rather than spraying after weeds form. So these chemicals are being added to crops. This practice is followed by mechanical and/or hand weeding to control weeds that are not controlled by the chemicals. Crops that are tolerant of herbicides would obviously be a tremendous benefit to farmers ( Figure above ). The introduction of herbicide tolerant crops has the potential to reduce the number of chemicals needed during a growing season, thereby increasing crop yield due to improved weed management and decreased harm to the crops.

Situation: Vince had a small rural farm. He needed to increase production and efficiency, so he started using herbicides. Danny was one of his farmer friends, he had a small acreage farm and he practiced permaculture, so no pesticides.

Question: Which farmer performed multiple applications of herbicide?
Answer: Vince

Situation: Vince had a small rural farm. He needed to increase production and efficiency, so he started using herbicides. Danny was one of his farmer friends, he had a small acreage farm and he practiced permaculture, so no pesticides.

Question: Which farmer didn't perform any applications of herbicide?
Answer: Danny

Situation: Vince had a small rural farm. He needed to increase production and efficiency, so he started using herbicides. Danny was one of his farmer friends, he had a small acreage farm and he practiced permaculture, so no pesticides.

Question: Which farmer didn't perform any applications of herbicide as a preventive measure?
Answer: Danny

Situation: Vince had a small rural farm. He needed to increase production and efficiency, so he started using herbicides. Danny was one of his farmer friends, he had a small acreage farm and he practiced permaculture, so no pesticides.

Question: Which farmer performed any applications of herbicide as a preventive measure?
Answer: Vince

Situation: Vince had a small rural farm. He needed to increase production and efficiency, so he started using herbicides. Danny was one of his farmer friends, he had a small acreage farm and he practiced permaculture, so no pesticides.

Question: Which farmer planted more crops tolerant to herbicide?
Answer: Vince

Situation: Vince had a small rural farm. He needed to increase production and efficiency, so he started using herbicides. Danny was one of his farmer friends, he had a small acreage farm and he practiced permaculture, so no pesticides.

Question: Which farmer planted fewer crops tolerant to herbicide?
Answer: Danny

Situation: Vince had a small rural farm. He needed to increase production and efficiency, so he started using herbicides. Danny was one of his farmer friends, he had a small acreage farm and he practiced permaculture, so no pesticides.

Question: Which farmer increased the crop yield?
Answer: Vince

Situation: Vince had a small rural farm. He needed to increase production and efficiency, so he started using herbicides. Danny was one of his farmer friends, he had a small acreage farm and he practiced permaculture, so no pesticides.

Question: Which farmer didn't increase the crop yield?
Answer: Danny

Situation: Vince had a small rural farm. He needed to increase production and efficiency, so he started using herbicides. Danny was one of his farmer friends, he had a small acreage farm and he practiced permaculture, so no pesticides.

Question: Which farmer observed decreased harm to the crops?
Answer: Vince

Situation: Vince had a small rural farm. He needed to increase production and efficiency, so he started using herbicides. Danny was one of his farmer friends, he had a small acreage farm and he practiced permaculture, so no pesticides.

Question: Which farmer didn't observe decreased harm to the crops?
Answer: Danny

Situation: Because of the weed and insect menace villagers from North village decided to use herbicide tolerant crops. South village decided to postpone a decision and kept using regular seeds.

Question: Which village reduced the number of chemicals needed during a growing season?
Answer: North

Situation: Because of the weed and insect menace villagers from North village decided to use herbicide tolerant crops. South village decided to postpone a decision and kept using regular seeds.

Question: Which village didn't reduce the number of chemicals needed during a growing season?
Answer: South

Situation: Because of the weed and insect menace villagers from North village decided to use herbicide tolerant crops. South village decided to postpone a decision and kept using regular seeds.

Question: Which village increased their crop yield?
Answer: North

Situation: Because of the weed and insect menace villagers from North village decided to use herbicide tolerant crops. South village decided to postpone a decision and kept using regular seeds.

Question: Which village didn't increase their crop yield?
Answer: South

Situation: Because of the weed and insect menace villagers from North village decided to use herbicide tolerant crops. South village decided to postpone a decision and kept using regular seeds.

Question: Which village didn't improve their weed management?
Answer: South

Situation: Because of the weed and insect menace villagers from North village decided to use herbicide tolerant crops. South village decided to postpone a decision and kept using regular seeds.

Question: Which village improved their weed management?
Answer: North

Situation: Because of the weed and insect menace villagers from North village decided to use herbicide tolerant crops. South village decided to postpone a decision and kept using regular seeds.

Question: Which village decreased harm to the crops?
Answer: North

Situation: Because of the weed and insect menace villagers from North village decided to use herbicide tolerant crops. South village decided to postpone a decision and kept using regular seeds.

Question: Which village didn't decrease harm to the crops?
Answer: South

Situation: Because of the weed and insect menace villagers from North village decided to use herbicide tolerant crops. South village decided to postpone a decision and kept using regular seeds.

Question: Which village added crops that are a tremendous benefit to farmers?
Answer: North

Situation: Because of the weed and insect menace villagers from North village decided to use herbicide tolerant crops. South village decided to postpone a decision and kept using regular seeds.

Question: Which village didn't add crops that are a tremendous benefit to farmers?
Answer: South