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How to scout for aphids in corn fields

Aphids cause substantial damage while they are hidden within the whorl. If aphids are already visible on the plant, significant damage has already occurred. Therefore, it is important to start scout for aphids three weeks prior to tasseling. Randomly select a plant every 40 meters. Pull the whorl upward and out of the plant. Slowly unroll each whorl, and look for the presence of the insects. You can use our crop stage modeling to plan your scouting activities. We will notify you three weeks before tasseling and remind you to start scouting for aphids.

Tasseling cannot be predicted accurately based on calendarial days. We use weather models to provide a more precise prediction.
Tasseling cannot be predicted accurately based on calendarial days. We use weather models to provide a more precise prediction.

Corn leaf aphids' growing degree days model

The life cycle of this pest can be predicted by using weather-based models. These models predict the optimal time to apply pesticide treatments. Once you register a field with a host plant in Agrio, the model automatically starts to run and instructs you in each milestone.

This model allows you to time the appearance of future insect pest generations. When insects are observed on plants, set the biofix date.

The model will track the development of the insects based on weather information. We use hyper-local weather data streamed into our servers once you define your field on the map.

Summary

Monitoring growing degree days helps eliminate the guesswork in determining the time required for control measures. Download Agrio today and make it your growing degree days app. We look forward to seeing you leverage this technology for intelligent and effective pest management in your field. 

In the meantime, as always, we wish you an abundant harvest.