Information you need: Moth Monitoring

One of the services provided by the University of Missouri Extension program is agricultural pest monitoring (as previously mentioned in an earlier posting – https://bootheelagpestmanagement.wordpress.com/2011/03/30/what-is-my-worm-pressure/ ). Pheromone traps are placed in key locations throughout the state to provide information on adult moth occurrence and population densities. This information will typically provide an early warning for a potential caterpillar outbreak, as the caterpillars come from eggs laid by the adult moths. This warning alerts scouts to look for egg masses and caterpillars so that crop management decisions can be made before the situation gets out of hand.

When making control decisions the Missouri Pest Management Guidelines (http://extension.missouri.edu/publications/DisplayPub.aspx?P=M171) is a useful source for economic thresholds for the different species. Remember in addition to counting pest numbers, noting the presence of predators (insects, birds, toads, etc.) and examining egg masses and caterpillars for signs of parasitoids can prevent making unnecessary applications.

You can access trap captures at (http://ppp.missouri.edu/pestmonitoring/index.htm) .  I was accessing the data because I was curious if the recent rain and flooding was impacting populations of True Armyworm and Black Cutworm. Below is an excerpt from the data set showing Black Cutworm captures at the Delta Center Lee Farm and as you can see the first week of wet weather is also had a decent capture.

Pemiscot (Hayward) – Kelly Tindall – Texas-style metal cone trap

Count Date

Trap Count

Days for Count

Intense Capture

Predicted Cut Date

03/04/2011

0

3

03/10/2011

0

7

03/17/2011

0

7

03/25/2011

6

8

03/28/2011

0

4

04/01/2011

0

4

04/08/2011

0

7

04/14/2011

0

6

04/22/2011

0

7

04/28/2011

20

6

-Kent



Categories: Monitoring

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