Take a look at the graph below comparing 11 different pestic…
Take a look at the graph below comparing 11 different pesticides and how lethal they are to brown planthoppers (BPH, in green, a major pest to rice plants) and how lethal the pesticide is to mirids, a natural predator of BPH (in red). The LC90 means “lethal concentration needed to kill 90% of the organisms”. For example, with the BPMC pesticide, it takes a concentration of around 5 to kill 90% of mirids and a concentration around 10 to kill 90% of BPH. The blue bars represent what the manufacturer of that pesticide recommends to farmers for how much pesticide to use. A. Which pesticide and at which concentration would you recommend for a farmer to use on their rice farm? Explain your reasoning. (5 points) B. Compare the concentration you stated in (A) to the manufacturer’s recommendation (blue bars). Did they match? If not, how did they differ? Why do you think they recommended this (whether it was close or not close)? (2 points) Pesticidegraph(1).jpg