Late fall - October to mid November. {Ans: The best time to fertilize cool season grasses is ______________.}dry {Ans: roots will not grow into ___________ soil}Bt (bacillus thuringiensis) {Ans: Commonly called ______________ this soil-inhabiting bacterium acts as a toxin to insects causing them to stop feeding, sicken and die within 4-7 days.}root rot {Ans: Symptoms of a plant wilting from the bottom of the plant without any obvious spotting on the leaves could indicate _________________.}photosynthate {Ans: The glucose, sucrose and other compounds such as malic and glycolic acids that are produced as a result of photosynthesis are collectively called _____________________.}viruses {Ans: _____________________ can exist and multiply only inside living cells.}