Canola Digest Science 2020 Issue
Science

Hot weather can increase swede midge damage

Science Edition: Integrated Pest Management
KEY RESULT: Swede midge, an invasive species, causes costly damage to canola in Ontario – but not on the Prairies at this time. Modeling found that when a high number of adults coincided with days of high temperatures, egg laying would increase and result in higher damage levels in the current year and outbreak-level populations...
Read More
Science

Pest network tracks crop-damaging insects

Science Edition: Integrated Pest Management
KEY RESULT: The Prairie Pest Monitoring Network (PPMN) provides forecasts, risk maps and monitoring protocols for crop pest insects across Western Canada. It also provides a free weekly update. Anyone can subscribe at prairiepest.ca. PROJECT TITLE, PRINCIPAL INVESTIGATOR: “Coordinated surveillance, forecasting and risk warning systems for field crop insect pests of the Prairie ecosystem,” Jennifer...
Read More
Science

Study compares plant and seed dry down for pre-harvest options

Science Edition: Harvest Management
KEY RESULT: This three-year study frequently showed benefits to using pre-harvest herbicide and desiccant options as tools to improve straight combining results. However, results show that going without a pre-harvest herbicide or desiccant is a potentially viable option, especially for early seeded, reasonably uniform and weed-free fields where a hybrid with good pod shatter tolerance...
Read More
Science

Weather is a big factor in combine losses

Science Edition: Harvest Management
KEY RESULT: A combine yield loss survey of 50 combines across the Prairies in 2019 found that weather factors had significant influence on losses. This emphasizes the need to regularly adjust and test throughout the day and harvest season. Temperatures greater than 23°C, relative humidity less than 45 per cent, and low cloud cover all...
Read More
Science

Airflow key to in-bin drying

Science Edition: Harvest Management
KEY RESULT: Supplemental heat added to natural air drying systems can improve drying capacity for canola as long as airflow is a minimum of one cubic foot per minute per bushel (cfm/bu.). Air must be heated to at least 5°C but not more than 30°C for in-bin drying. PROJECT TITLE, PRINCIPAL INVESTIGATOR: “Best Management Practices...
Read More