in winter we should do 2 treatments in fruit trees.
it is important to treat the fruit trees in winter for 2 reasons (we’re going to eliminate 80% of insects and this makes spring have to act less, when we have fruit on the tree while trying on a time where the insecticide leaves no residue on fruits).
Treatment consists of copper oxychloride 50%, but the paraffin oil 83% (a petroleum derivative used in agriculture) and an insecticide (either is valid, the oldest we have at home, its function is to promote more even paraffin oil)
a proper mix of serious product, for a backpack 20 liters of water, using 200 cubic centimeters of liquid paraffin, 80 g of copper and 40 cc of venom
when we made the treatments?
the first treatment to do when our trees have dropped between 60% and 80% of the leaf, must remember that copper is a “preventive” product and you have to use it before fungal attack, then it no longer serves .
falling leaves of our trees in the tree are small wounds on the junction of the petiole of the leaf and the tree, trying to protect fallen leaf those wounds with copper and fungi avoid entering there.
oil parafilm, it is clear to use, its function is to surround insects and eggs and drown because they can not breathe, it is important to wet the entire tree, including the trunk and the base of the trunk (some insecticide will enhancing the action of paraffin oil).
the second treatment must be done in early spring, when the tree is awakening, when the flowers are close to exit from the phenological stage B to E can try
from this point we must not use copper because it can be very toxic to our fruit (especially apples, pears and fig is also a very persistent product if applied on fruit, this will be on the fruit all the year and will never go away) in spring as systemic fungicides can use with preventivar, curative and eradicant functions on fungi and their persistence on the fruits is limited (about 14 or 21 days, these fungicides can be DIFENOCONAZOL 25%,TEBUCONAZOL 25%,DODINA 40% and many more)
dose-term safety of the product (are highly concentrated and have to use very little product, 2 or 3 cubic centimeters mixed in 20 liters of water
formerly in post flowering fungicides captan, thiram or ziram were used, but these are being or have already been banned in many countries by different studies say can cause cancer.
a little trick:if we live in a climate zone where we have few hours of cold, in the first winter treatment can also take a bit of nitrogen (high biuret), this will cause burns on the leaves and the leaves will fall well before entering our tree 2 or 3 weeks before the recess or winter break and will start accumulating hours with cold long before what we will be more and better sprouting buds for spring
(sorry for my bad language)