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Nature's solution - Harnessing ladybug scent for crop protection

By Farms.com

Aphids are a major agricultural pest, feeding on plant sap and spreading viruses that compromise seed production. The battle against these pests often relies heavily on pesticides, which can negatively impact the environment and health. Seeking a sustainable alternative, researchers at Penn State, led by Sara Hermann, have turned to nature for answers, focusing on the relationship between aphids and their natural predator - The ladybug. 

The team's research has uncovered that aphids are naturally deterred by the scent of ladybugs, a discovery that holds significant promise for eco-friendly pest control. By identifying the key compounds in ladybug scent and demonstrating their ability to change aphid behavior, the researchers have laid the groundwork for a novel approach to protecting crops. The scent has been shown to significantly reduce aphid feeding time and population numbers, offering a new tool in the fight against these pests. 

This approach not only reduces the need for chemical pesticides but also aligns with broader goals of sustainable and nature-friendly farming practices. The potential for commercial production of the ladybug scent components marks a step towards making this innovative pest control method widely available. 

Supported by key agricultural institutions, this research emphasizes the importance of understanding ecological interactions to develop effective, sustainable solutions. The team's ongoing work aims to assess the broader implications of using ladybug scent in agriculture and explore similar strategies with other predators, underscoring the vast potential of ecological science in advancing sustainable agriculture.


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Sclerotinia and Lygus in Seed Canola: Field Update with George Lubberts, CCA | Enchant, Alberta

Video: Sclerotinia and Lygus in Seed Canola: Field Update with George Lubberts, CCA | Enchant, Alberta

Join Certified Crop Advisor George Lubberts for this Prairie Certified Crop Advisor (Prairie CCA) field update from Enchant, Alberta. In this 12th video of the series, George takes us into a seed canola field where the male rows have been removed and the female plants are filling pods. This video was taken in the third week of August 2025.

George discusses the early signs of sclerotinia stem rot, explaining how infection begins in the stem, impacts pod development, and leads to premature ripening. He also shares insights on lygus bug management, including timing of spray applications to minimize feeding damage and maintain seed size and quality.

With cool, damp summer conditions, George notes that while disease pressure is present, overall field health remains good. The crop is just beginning to show early seed colour change, signaling progress toward maturity.

Topics Covered:

•Sclerotinia stem rot identification and impact

•Managing lygus bugs in seed canola

•Crop stage and seed colour change observations

•Timing insecticide sprays for optimal protection

•Insights from a CCA field perspective in southern Alberta