![]() The spring continues to be challenging for apple scab management in areas of the province that have been seeing rainy periods and several extended primary infection periods. For those with young trees, studies have found Apogee applied at a high rate on young trees provides good control of shoot blight without significantly impacting growth. Many growers have been applying Apogee starting at king bloom petal fall (typically when growth is 2.2 – 5.5 cm long) to help with shoot blight management. If there is concern, Streptomycin or Cueva and/or Double Nickel can protect against spread of infection if used immediately following a trauma event (ideally less than 12 hours after). Warm, humid weather can also bring unsettled or extreme weather including heavy rain, hail and high winds as we saw last weekend. ![]() Instead, continue to monitor infection risk and apply protectants if needed. ![]() For many operations, this practice is just not viable. Be sure to remove blossoms in dry weather to prevent the spread of infection. If time and labour are available, it may be best to go through the orchard every couple of days and remove the rat-tail blossoms by hand.
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