Sweet cherries exhibit considerable incompatibility between varieties, and even if two varieties bloom at the same time cross-pollination may not occur. Sweet cherries ( Prunus avium) are the only fruit species where pollination can be problematic. Japanese plums ( Prunus salicina) are generally not compatible with European plums ( Prunus domestica), but will often cross-pollinate Many will cross-pollinate with Japanese plums in flower at the same time. Pollination of Cherry plumsĪll varieties of this species ( Prunus cerasifera) tend to flower at about the same time (in plum flowering group 1) and will cross-pollinate. Note that the same range of pollination groups (1-6) are used for plums, cherry plums, and Japanese plums. Pollination of European plums, gages, damsons, and mirabellesĪll these species are very closely related and are generally compatible, so if they are in flower at the same time they should cross-pollinate. The popular Williams / Bartlett pear is incompatible with a small number of other pear varieties, so these are excluded. Perry pears are European pears, and have similar pollination requirements. Pears follow broadly the same pattern as apples, with pollination based on bloom times and flowering groups (1-6), with a few enhancements for specific incompatibilities.Īsian and European pears are different species, but their pollen is usually compatible. Pollination of European pears, Perry pears, and Asian pears Most white-flowered crab-apples are also good pollinators of apple trees. Our article on the pollination of fruit trees gives more details of some of the factors involved in pollination. The scientific data on the genetic incompatibility between apple cultivars is incomplete, and many other factors affect successful pollination. Varieties which belong to the same genetic incompatibility group are excluded (even though they may not be closely related to your variety) because cross-pollination will be less successful or may not be possible at all. Varieties which are closely-related (for example, share a common parent) are excluded from the selection because cross-pollination is less effective between close relatives. Varieties which are known to produce low quantities of pollen or poor quality pollen are excluded. Pollination of ApplesĬompatible apple varieties are selected on the basis of common or overlapping bloom times and flowering groups (1-6). #PEAR NOTE MAC UPDATE#It also means The Happy Pear and Musgrave “will co-operate in researching and activating international markets globally”, Mr Murphy said.Īs part of the licence agreement, The Happy Pear will continue to produce its in-house retail products for Musgrave under a long-term supplier agreement, but other packaged retail products previously produced by outside contractors for The Happy Pear will now be managed directly by Musgrave.Our pollination checker is intended to be used as a guide only, and is by no means 100% accurate, but we regularly update it. These negotiations have since been concluded, seeing The Happy Pear enter into a long-term partnership where Musgrave has acquired responsibility for producing, distributing and marketing all The Happy Pear packaged retail products for the island of Ireland. He also noted that towards the end of 2019, the company “commenced a structural review and commenced negotiations in respect of a licence agreement with Musgrave”. Mr Murphy said the business had expanded the offering at The Happy Pear’s site in Greystones “through the installation of a new organic artisan sourdough bakery, which has been very popular with locals”.
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