There is not really a good way to keep the pear tree from fruiting once it starts. However, you can drastically thin the crop to reduce the number of pears. Take a broom to the tree and simply knock the fruit off about four weeks after bloom. This will reduce the number of remaining fruit and provide better quality. When you do this, you will set yourself up for a big crop the next year, so it will be a continuous thing from year to year. In addition to thinning, proper pruning also adds quality to the crop. Avoid chemical solutions.
