Field Crop Pest Management 2007–2008

Field Crop Pest Management 2007–2008
Section 1, Pest Management

Table 2.1-1. Comparison between activities of an ideal IPM program and a routine spray program.
Table 2.1-2. Key times for corn insect activity.
Table 2.1-3. Key times for alfalfa insect activity.
Table 2.1-4. Key times for soybean insect activity.
Table 2.1-5. Key small-grain insects.
Table 2.1-6. Field characteristics that increase the likelihood of certain pests in corn.
Table 2.1-7. Yield reduction from various weed species in corn and soybeans.
Table 2.1-8. Some common herbicide families, herbicides, resistant weeds, and locations.
Table 2.1-9. Herbicide modes and sites of action and representative examples within each group.

Figure 2.1-1. Percentage of alfalfa fields with above-threshold weevil infestation in Maryland, 1983 to 1989, and Pennsylvania, 1986 to 1989.
Figure 2.1-2. Percentage of fields with threshold levels of alfalfa weevil across locations in New York in 1988.
Figure 2.1-3. Relationship between the economic injury level and the economic threshold with changing economic and biological conditions.