Crop Pest Update - 2 Aug 2021

Aug 02, 2021

Summary

Insects: Grasshopper populations are quite variable, but continue to be a problem in some areas. Higher levels are occurring in pastures in some areas, as well as cereal crops. As some preferred hosts mature or are cut populations move around, and may move into other crops. Some grasshopper control in canola has been reported. Diamondback moth has been at economic levels in some canola fields in the Eastern and Interlake regions. Spider mites are starting to be noticed on some soybeans in the Interlake region.

Weeds: Combines are starting to roll across the province, for fields that have perennial weed issues preharvest control using a systemic herbicide is an option. For other fields where quicker weed and crop drydown is wanted to facilitate harvest and storage, desiccation may be desired. Grain from crops treated with preharvest products may have market access concerns, you need to consult all potential buyers before using any preharvest product. If using generic products refer to the specific label to determine if that product is registered for the crop you are spraying.

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Video: What Happens When Pigs Adapt to High Soybean Meal Diets? - Gustavo Lima

In this special rerun episode of The Swine Nutrition Blackbelt Podcast, Gustavo Lima, PhD candidate in Animal Science at Iowa State University, discusses how grow-finish pigs respond to high soybean meal diets. He explains the initial drop in feed intake, changes in backfat, later adaptation, energy efficiency, amino acid utilization, and the rise in nitrogen excretion at higher inclusion levels. Listen now on all major platforms!

Click here to read the full research article: https://academic.oup.com/jas/article/...

“Once they got adapted to the diet, they can handle higher levels of inclusion of soybean meal.”

Meet the guest: Gustavo Lima / gustavo-lima-a9867127 is a PhD candidate in Animal Science at Iowa State University whose work focuses on swine nutrition, ingredient characterization, energy metabolism, caloric efficiency, and applied data analysis. With more than 15 years of experience in swine production across Latin America, Gustavo also brings expertise in environmental control, performance evaluation, barn ventilation, and grow-finish housing. Learn more from Gustavo Lima on The Swine Nutrition Blackbelt Podcast, available on all major platforms.