Volume 61 Number 4 May 19 2016
This Week's Weather & Pests

Cold, occasionally rainy weather continued for a second week, slowing crop emergence and development. Below-normal temperatures prevailed and a devastating late spring frost occurred across much of the state on May 15, as morning lows plummeted to the mid-20s in portions of northern and central Wisconsin and to the lower 30s in the far southeast. Near-record cold temperatures caused widespread damage to grapes and other fruit crops, with losses in excess of 50% reported from many vineyards and orchards. Cool conditions persisted through mid-week before milder weather returned, allowing planting of the last acres of oats and potatoes to resume. After a period of rapid planting earlier this month, over 76% of this year's intended corn acres have been sown, four percentage points behind last year but 29 points ahead of the five-year average. Statewide, more than 17% of the corn crop has emerged. Soybean planting advanced 15 points to 33% complete as of May 15.

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