What kind of medicine should pear trees use to protect flowers and fruits?

Naphthalene acetic acid, sodium naphthalene acetate, gibberellin, dwarf, paclobutrazol and butyrylhydrazide can be used to protect flowers and fruits of pear trees. According to different varieties and different environments of pear trees, choosing the right proportion of drugs is the most effective.

What kind of medicine should pear trees use to protect flowers and fruits?

1. Gibberellin: when pear trees are sprayed with gibberellin 10~20mg/L or young fruit once, it can promote fruit setting and increase yield.

2. Naphthalene acetic acid, sodium naphthalene acetate: spraying 100mg/L 's naphthalene acetic acid solution when 80% of the flowers of an pear bloom can increase the fruit setting rate.

3. Dwarftin: spraying 500mg/L once before bud germination and young leaves of new shoots could reduce branch growth, increase the number of short branches and leaves, and increase fruit setting rate and yield.

4. Paclobutrazol: spraying 450mg/L paclobutrazol 3 weeks after pear blooming can increase the flowering rate. Applying paclobutrazol (paclobutrazol) from 5g/ plant to soil or spraying paclobutrazol from 5g/ plant to soil could promote flower bud formation of young trees of Korla fragrant pear.

5. Butyrylhydrazide: good flower-promoting effect can also be obtained by using butyrylhydrazide in most Japanese pear or sand pear varieties. Spraying the mixture of butyrylhydrazide of 1500mg/L and ethephon of 250mg/L, the flower promotion effect is better.