armyworm can cause devastating outbreaks on tropical corn).

Wheat yields are shown in Table 1.


Table 1. Wheat Yields1 (bu/A) for Florida 301, 302, and 303
during 1985 to 1988 at Quincy FL.
Year Florida 301 Florida 302 Florida 303


 bu/A


1985 56 45 49
1986 60 48 60
19872 57 55 64
19873 43 65 62
19884 65 63 70
19885 58 62 70

Mean 56 56 62


1 Agronomists of IFAS, Univ. of Fla., Florida Field and Forage
 Crop Variety Reports: AY86-10, AY87-2, AY88-02, AY89-07.
2 State Variety Test
 Uniform Southern Test
4 Early Planted State Test (12-1-87)
s Late Planted State Test (12-9-87)


 Soybean is an ideal low-energy-input crop for double-cropping

after wheat in the south. Florida 302 wheat is harvested from 24

May to 10 June each year in North Florida. Soybean growing re-

quirements fit the environment at that time. Herzog (1988) has

shown that Braxton yields the best when planted 8 June. Soybean

has very few disease pests, but many insect pests, ie., velvet-

bean caterpillar, soybean looper, and stink bug. Therefore,

soybean fields must be scouted on a regular basis during the

growing season to monitor pests and determine when spray applica-

tion is necessary. Soybean yields in relation years and early

June planting date are shown in Table 2.