CARE TREATMENTS
In the quarters of two-year-old trees, it is best to keep the soil clean with herbicides. Depending on the degree of soil infestation, the same or slightly higher doses of herbicides are used as in the nursery of one-year-old maiden trees..
Only nitrogen fertilization is used in plots of two-year-old trees. Depends on the growth strength of the trees, pure nitrogen doses are from 50 do 100 kg / ha. Two-year trees, as well as annual maiden trees, they are very susceptible to diseases and pests. Preventive and intervention spraying should be carried out at the same intervals and with the same means, recommended for the protection of one-year-old maiden trees.
Negligence in phytosanitary measures may lead to the disqualification of the material ‘ expose producers to huge losses.
For the most dangerous diseases and pests (quarantine) includes apple and pear fire blight, and among pests – destroyer scale, the occurrence of which causes the disqualification of all fruit trees. Diseases belong to the second group, the occurrence of which causes the disqualification of individual trees. These are the following diseases: bacterial cancer of fruit trees, the silvery of the leaves, gangrene of the bark of fruit trees, litteriness (proliferation) apple trees, plum pox (shark) and necrotic blotch in the bark of apple cultivars from the Delicious group.
Diseases and pests belong to the third group, whose occurrence and stronger infestation of the trees reduce the quality of the material and sometimes may be the basis for disqualifying trees of a specific variety. Among the pests, for example,. blueberry cotton, Apple crustacean, sparrow pear.
Digging up two-year trees, sorting and preparation for sale, and the packaging and transport are carried out similarly to the production of annual trees.