PRST STD U.S. POSTAGE PAID OMAHA, NE PERMIT NO. 36
Volume IV, Issue 8
AUGUST 2009
Specialist watch for aphids, hope for warmth
Iowa Farm & Ranch contacted Iowa State University Extension field agronomists from across western Iowa and asked a series of crop production questions; see the experts’ responses by Emma Struve
Q
What have been the most productive management strategies you’ve seen so far this year? The least? “This spring and early summer were cool and wet, which hurt no-till fields most. Many notill fields that were not established had problems with uneven emergence and when the cool temperature persisted fields became uneven and yellowish. Some of this can also be associated with the type of planter attachments used and how the planter was set up,” said
A
Mark Licht, who serves Ida, Sac, Calhoun, Monona, Crawford, Carroll, and Greene Counties. George Cummins, Winnebago, Worth, Mitchell, Hancock, Cerro Gordo, Floyd, Franklin, Butler, Bremer, Grundy, and Black Hawk Counties, added that good management strategies have been, “variety selection to match local conditions (i.e. cyst nematode resistance, iron chlorosis tolerance, and specific disease resistance), early season weed control…and identifying problem pests, understanding its life cycle, knowing the thresholds and treating as necessary.”
R. Aaron Saeugling seconded Cummins’ answer in that successful management included “timely planting and early season weed control.” Saeugling works in Guthrie, Adair, Adams, Union, Clarke, Lucas, Taylor, Ringgold, Decatur, and Wayne Counties. Concerning low-linolenic soybeans: what have you observed about management challenges, yields, and price premiums? “Low-linolenic soybeans are being grown across my coverage area. Premiums for growing them have been enough to encourage acres,” Licht replied. “There is
Q A
likely some yield drag associated with growing them. “That yield drag is narrowing as genetics of low-linolenic soybeans are being improved with increased adoption,” he continued. “Thresholds for insects and diseases should be altered due to higher market prices,” Licht advised. Cummins elaborated on the situation, “Organizations like Qualisoy are working with the supply and demand side to create new options for producers. Continued on page 3