21. In oilseed rape crop, usually requiring chemical control measures. 22. He gained worldwide recognition early, clarifying the role of chemical control processes in the brain. 23. "' Chemical control "'- The use of chemical control is widely available for agricultural purposes. 24. "' Chemical control "'- The use of chemical control is widely available for agricultural purposes. 25. There are also chemical controls available that can be used to eliminate adults and larvae. 26. Of the chemical controls , the CO2 drive is stronger than the O2 or pH drive. 27. Chemical control is possible through the use of fungicides.28. Chemical controls , crop rotation, and soil sanitation have all proven rather ineffective at combatting the virus.29. Uganda is reportedly keen on chemical control after much-touted-and expensive-mechanical harvesters failed to make an impact. 30. Chemical controls of herbicides and insecticides can be implemented and is the best form of control.
