Scientists want to test two types of pesticides to determine which is more effective at decreasing the number of crop pests. Samples are taken from six cornfields, and the number of pests in each sample is recorded. Three of the fields are then treated with pesticide A and three with pesticide B. The crops are analyzed each week for eight weeks. What are the treatments being used for the study? The number of pests at the end of 8 weeks. The six cornfields. The two types of pesticide. The marine biologists