By Andi Anderson
Apple growers across southwest Michigan are entering a critical stage of the 2026 harvest season as several popular apple varieties continue to mature. Weekly apple maturity reports from Michigan State University Extension are helping producers make informed harvest and storage decisions while monitoring changing weather conditions.
Recent weather across the region has been wet, with widespread rain and occasional thunderstorms affecting orchard operations. However, forecasts indicate that conditions will improve significantly heading into the weekend. Sunny skies, cooler temperatures, and drier conditions are expected to provide favorable opportunities for harvesting activities. Growers are encouraged to make use of this improved weather window as cooler temperatures are expected to arrive during the following week.
Apple maturity testing remains an important tool for determining the best harvest timing. Evaluations typically include measurements such as fruit color development, background color, firmness, starch conversion, and sugar content. These indicators help growers assess fruit readiness for fresh markets, controlled atmosphere storage, and long-term quality maintenance.
Among the varieties evaluated this week, Fuji apples have reached maturity and are ready for harvest. Testing showed good sugar levels and maturity indicators suitable for picking. Northern Spy apples have also reached maturity, and harvesting activities are already underway in some orchards.
EverCrisp apples have demonstrated strong maturity characteristics and are considered suitable for controlled atmosphere storage and long-term storage programs. The variety continues to show attractive color development and high sugar content, making it a valuable option for growers targeting premium fruit markets.
IdaRed apples are approaching maturity, with some advanced orchard blocks already ready for harvest. Growers are encouraged to monitor fruit conditions closely and schedule harvest activities based on maturity levels within individual orchards.
Braeburn apples remain immature at this stage. Although fruit development continues, additional time is needed before harvest can begin. Continued monitoring over the coming weeks will help determine the ideal picking period for this variety.
Fruit quality evaluations also showed generally favorable sugar levels across most varieties. Higher sugar measurements often indicate improved eating quality and market appeal. Monitoring firmness and starch conversion remains equally important, particularly for growers aiming to optimize storage performance.
Michigan State University Extension encourages producers to continue using maturity testing tools, starch charts, firmness measurements, and storage guidelines throughout the harvest season. These resources allow growers to make science-based decisions that support fruit quality and maximize market value.
As the harvest season progresses, regular monitoring of weather, fruit maturity, and storage requirements will remain essential. With several varieties now reaching harvest readiness and favorable weather arriving, southwest Michigan growers are well positioned to continue a successful apple harvest while maintaining high-quality fruit for consumers and storage markets.
Photo Credit: istock-rixipix
Categories: Michigan, Crops, Fruits and Vegetables, Harvesting