Many of our dutiful trapping cooperators throughout the state captured black cutworm moths this past week - refer to the “Black Cutworm Adult Pheromone Trap Report” for captures. This recent flush of moths is attributed to storms that have kept us out of the fields.
Moth arrival, along with the use of heat units to predict the beginning of larval activity, gives us an indication of the potential severity of the problem and locations of concern. Thus, we are able to predict with some degree of accuracy when and where crop damage is most likely to occur based on this information. Refer to future issues of the Pest&Crop as we track heat unit accumulations and predicted damage in your area.
Here’s a question we are often asked: Should one treat for black cutworm before or at planting? Because of the sporadic outbreak nature of this pest, the tried, true, and economic approach to black cutworm management is to scout fields, determine infestation and damage levels, and use a rescue treatment, if needed. Foliar insecticides are effective, especially when applied early (i.e. while cutworms are small and not yet “cutting”). Producers using insecticide-treated seed may have a false sense of security concerning black cutworm control. The systemic activity of these insecticides during the seedling stage should help suppress small larvae feeding on plants. Larger larvae, as with all insects, are more difficult to kill. Coupled with the fact that there is less insecticide in plant tissues at this time, efficacy declines as the spring wears on. The black cutworm flight and egg-laying period spans several weeks and green or weedy fields may attract egg-laying moths over multiple flights. These fields can experience significant damage and stand losses, even when treated seed is used.
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4/2/15 - 4/8/15
4/9/15 - 4/15/15
|Adams||Kaminsky/New Era Ag||0||14|
|Clay||Bower/Ceres Solutions, Brazil||0|
|Clay||Bower/Ceres Solutions, Bowling Green||0|
|Clinton||Emanuel/Boone Co. CES||0||0|
|Elkhart||Kauffman/Crop Tech Inc.||1|
|Fayette||Schelle/Falmouth Farm Supply Inc.||3||42*|
|Fulton||Jenkins/N. Central Coop-Rochester||1||15|
|Fulton||Jenkins/N. Central Coop-Kewana||0||15|
|Gibson||Schmitz/Gibson Co. CES||0|
|Hamilton||Truster/Reynolds Farm Equipment||1|
|Henry||Schelle/Falmouth Farm Supply Inc., Millville||1||4|
|Jay||Shrack/Ran Del Agri Services||0||1|
|Jay||Temple/Jay County CES||0||1|
|Knox||Bower/Ceres Solutions, Freelandville||0||0|
|Knox||Bower/Ceres Solutions, Vincennes||0||4|
|Knox||Bower/Ceres Solutions, Oaktown||0||1|
|Lake||Moyer/Dekalb Hybrids, Shelby||0||4|
|Lake||Moyer/Dekalb Hybrids, Schneider||0||5|
|Miami||Myers/Myers Ag Service||0||0|
|Rush||Schelle/Falmouth Farm Supply Inc.||0||0|
|Sullivan||Bower/Ceres Solutions, Farmersburg||0||0|
|Sullivan||Bower/Ceres Solutions, Sullivan E||0||14*|
|Sullivan||Bower/Ceres Solutions, Sullivan W||0||4|
* = Intensive Capture...this occurs when 9 or more moths are caught over a 2-night period
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|County/Cooperator||Wk 1||Wk 2||Wk 3||Wk 4||Wk 5||Wk 6||Wk 7||Wk 8||Wk 9||Wk 10||Wk 11||Wk 12|
|Dubois/SIPAC Ag Center||0||0|
|Jay/Davis Ag Center||0||0|
|Jennings/SEPAC Ag Center||0||0|
|Knox/SWPAC Ag Center||0|
|LaPorte/Pinney Ag Center||0||0|
|Lawrence/Feldun Ag Center||0||2|
|Randolph/Davis Ag Center||0||0|
|Whitley/NEPAC Ag Center||0||1|
Wk 1 = 4/2/15 - 4/8/15; Wk 2 = 4/9/15 - 4/15/15
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The spring is off to a slow start, but wheat is progressing and now is a great time to review the Purdue Extension publication ID-422 “Managing Wheat by Growth Stage”. Herbicide, fungicide, and fertilizer applications are most efficacious when applied at the correct growth stage. This publication describes the key wheat growth stages and provides images to help with accurate growth stage identification. The bulletin also provides a printable one-page table that outlines management decisions by growth stage.
The second annual Purdue Crop Scouting Competition will be held on August 20th at the Purdue Diagnostic Training and Research Center (DTC) at the Agronomy Center for Research and Education (ACRE) in West Lafayette, IN
Indiana high school student teams of 4-6 individuals, and adult team leaders are eligible to participate in the competition. The primary goal of the Crop Scouting Competition is to educate youth about agriculture and Integrated Pest Management (IPM) concepts.
Five teams competed at last year’s event, including Connersville FFA, South Newton FFA, Eastern Hancock FFA, South Central FFA and Rochester FFA. These teams participated in field scouting exercises in both corn and soybeans and focused on basic crop agronomics, pest ID (weeds, insects, diseases) and scouting techniques. The student teams and coaches enjoyed the hands-on approach to the contest, and appreciated the interaction with Purdue specialists. The experience was beneficial to helping students understand the “real-world” agricultural applications.
The top three teams were recognized with a certificate. In first place was South Newton FFA; in second place was Eastern Hancock FFA and in third place was South Central FFA.
The 2015 competition will be limited to 8 teams and will feature new hands-on exercises for participants. Funds are available to help with lodging costs for teams. Teams must register by July 1st, 2015 by contacting Lisa Green at email@example.com.
All groups are welcome. Teams can be supervised by industry members, Extension educators, K-12 Agriculture educators, FFA crop judging teams and other FFA groups, or 4-H groups.
The competition will begin in the morning and conclude with a provided lunch.
More information and resources for team training can be provided by contacting Kiersten Wise at firstname.lastname@example.org
To date, support for the competition has been provided by the Indiana Soybean Alliance and the Indiana Corn Marketing Council, Weaver Popcorn, and the Indiana Certified Crop Advisors.
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