Do we need to disinfect in dry conditions?īordeaux paste (last only 1 – 2 years) Bordeaux powder, white lead & raw linseed oil. If the climate is wet it will promote fungi that cause wood decay. However, when they are removed add care to the tree must be administered.ġ3 The type of care given will depend on the local climate conditions. If properly pruned over the years the removal of large limbs can be avoided. ![]() Irrigation, fertilizers, thinning, ect.ġ1 Types of pruning Dormant Spring Summer Pruning alone will not regulate growth & productivity. Heavy pruning causes? Class #2 Light pruning causes? Class #4ĩ Keep a balance between growth & fruitfulness will put the trees in to class 3 which every commercial orchardist aims to maintain his/her trees.ġ0 Relation of pruning to other cultural practices. 3-When mineral nutrients are abundant (except nitrates, which are relatively less than in class 2), vegetativeness is reduced and carbohydrates accumulate, resulting in fruitfulness and a moderate amount of vegetative growth.ħ 4- When minerals nutrients are abundant (except nitrates, which are relatively even less than in class 3), the result is a marked accumulation of carbohydrates and a suppression of both vegetativeness and fruitfulness.Ĩ How pruning effects growth & fruitfulness 4- Root growth is decreased by a reduction in the amount of energy-producing food manufactured.ĥ Four classes of growth & fruit responseġ- When mineral nutrients (including nitrates) are abundant but a little or no carbohydrate supply is available, the result is weak vegetative growth and a nonfruitful plant.Ħ 2-When mineral nutrients (including nitrates) are abundant and a carbohydrate supply is available, the result is a strong vegetative growth but little or no fruit. ![]() ![]() 2- A greater % of reserve foods is made available to the reduced number of growing points & fruits.Ĥ 3- A decrease evaporation results in conservation of soil moisture & allows a smaller tree to thrive longer under limited water conditions. ![]() Used for early spring growth until leaves are present on the tree.ġ- The food supply is decreased by reduction of the manufacturing surface. Presentation on theme: "Pruning Deciduous Fruit Trees"- Presentation transcript:Ģ Plant food supplies: their source & useĬarbohydrates stored in the roots that were produced the prior year.
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