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The effects of post-bloom applications of calcium hydroxide (3000 g per 100 1) either alone or mixed with copper hydroxide (150 g Kocide , 50% Cu per 100 1) on fruit quality of sweet cherry and apple were studied. The sprays were applied to sweet cherry trees within 6 weeks of flowering and to apple trees within 8 weeks of flowering. Calcium hydroxide alone had no effect on the quality parameters...
An effective and potentially commercial reduction of cracking in sweet cherries is reported from experiments conducted on five sites over three seasons. The treatment, Cu(OH) 2 at 200 g per 100 l plus Ca(OH) 2 at 3 kg per 100 l applied at 3 and 6 weeks after full bloom, resulted in a significant and consistent reduction in the proportion of cracked fruit from susceptible cultivars...
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