One Thousand Questions in California Agriculture Answered Part 12
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Would Clapp's Favorite be a good pollinizer for the Bartlett as well as the White Doyenne?
The white Doyenne and the Clapp's Favorite usually begin to bloom three or four days later than the Bartlett, but the Bartlett period extends about ten days into the blooming period of the others. Therefore, your question is to be answered in the affirmative; that is, if the Bartlett needs pollination, it will be likley to get it from either of these varieties.
Comice Pears.
Would you plant Comice pears instead of Bartletts, and why? What is their behavior as to bearing? Do they require any different treatment than Bartletts? What roots? Do they need other varieties for pollinizing?
Do not plant Cornice instead of Bartletts except for those who have tested out the Cornice to their production and selling. Though satisfactory in some places, it makes no such wide record of success as the Bartlett and should be planted only on the basis of experience with it. Its propagation and culture are the same as other pears. It takes to the quince all right if you want dwarf trees. We have no record of its pollination needs, but as the Bartlett in California defies its Eastern reputation for self-sterility, it is likely that Cornice may also take care of itself, for it is not handicapped by such Eastern condemnation.
No Pears on Peach.
I saw, the other day, some Bartlett pear grafts in Salway peach trees, and the party informed me that he had seen three-year-old grafts that had pears last season. I would like your opinion, as I always thought that such a union was not possible.
Our opinion is like yours, and seeing some pear grafts set in peach branches would not convince us that they would grow or bear fruit.
Pigs in the Orchard.
I have an orchard of Bartlett pears about fifteen years old, located on sediment land. I desire to set this to alfalfa, and to feed the alfalfa by letting hogs eat it off, thereby leaving the droppings on the land.
What I wish to know is this: Will this crop be beneficial or injurious to the trees?
Alfalfa can be successfully grown in an orchard, providing you have irrigation water so that the alfalfa shall not rob the trees of moisture; otherwise it is a very dangerous practice. The practice of running animals of any kind in an orchard is to be condemned. Pigs are particularly liable to injure trees by gnawing the bark, and we have seen fig trees barked clean as high as a pig could reach by standing on his hind legs. Of course, if you try an experiment for your own satisfaction, you will have to watch the pigs very carefully. It is true that growing pasture crops in an orchard and grazing, it off is injurious to trees, because the land lacks proper aeration, and good orchard cultivation is even more necessary in this State than in humid climates. Therefore, unless you are sure of a good water supply for irrigation, it would be altogether safer to give the whole land to the trees and keep them cultivated well, or else dig out the trees and use the land for other purposes.
Dwarf Pears Not Commercially Grown.
Will you kindly give the experience of pear growers in California who have grown the dwarfs? If you can give me the data or refer me to persons who can give data showing that the growing of dwarf pears can be made a commercial success the information will be of great value.
There is no commercial growing of dwarf pears in this State, except some trees owned by the A. Block Company, Santa Clara. The late Mr. Block had an old orchard of dwarf trees, planted perhaps forty or fifty years ago, which he converted into an approach to a standard orchard by removing alternate rows, and the trees being otherwise treated like standards have been satisfactorily producing pears for many years. How far these trees are still on the dwarf roots and how far they have supplied themselves with roots from the variety growth above, we do not know.
There is no disposition whatever to plant dwarf trees in this State except among a few amateurs who are making home fruit gardens. In view of the successful growth of standard trees in this State, there seem to be no adequate reasons for recourse to dwarf trees.
Yield in Drying Pears.
What is the loss of weight in drying Bartlett pears?
They run from 7 to 8 lbs. of fresh pears to 1 lb. hard dried. There is quite wide variation according to condition of the fruit. Probably about 7 1/2 to 1 would be as near a realizable ratio as you could get by arbitrary estimate.
Pear Problems.
Kindly let me know the advisability of grafting Bartlett pears onto apple trees. In replanting pears in young orchard, how would it do to take rooted pear suckers, graft the Bartlett on them, and save the cost of nursery stock? Last year my five-year-old Bartlett orchard was full of blossoms, but, though many pears became as large as white beans, the majority of them dropped.
The pear and apple do not make a good union. The grafts may grow for a while, but finally fail. Do not use suckers as stocks. You can dig up some year roots and use them as starters by making root-grafts with Bartlett scions and do better than with suckers, but a good pear seedling is the proper thing either for budding or root grafting. Unless you have some experience in such work, it will be cheaper in the end to buy good nursery trees. The nonbearing of your young trees is probably due to their youth and vigor.
Bees and Pear Blight.
A few years ago, I planted alfalfa between my pear trees and the trees bore a very heavy crop that year. Then blight made its appearance, and it was claimed that the bees carried the blight. I therefore plowed under the alfalfa and destroyed what few beehives I had. If the theory that the bees carry the blight from tree to tree is not correct, I will experiment with alfalfa again this year.
It is true that bees carry pear blight. It is also true that you are not likely to get many pears without bees to pollinate the blossoms. You cannot escape the carriage of the pear blight by removing tame bees, because wild bees are abundant in all parts of the State. The way to overcome the blight is to pursue it by amputation of diseased branches continually, so that there may be no contamination for the bees to carry. You are certainly warranted in continuing your alfalfa growing without regard to this question, using water enough to keep the alfalfa growing well without saturating the soil to the injury of the trees or inducing too much summer growth on them.
Forage Under Sprayed Trees.
Is it safe to use a.r.s.enical sprays in a pear orchard in which alfalfa is raised between the trees and afterward cut and fed to cattle?
It was fully demonstrated by experiment about 25 years ago that herbage under trees sprayed with paris green at the rate of 1 pound to 160 gallons of water was not injurious to animals pasturing upon it. We are not aware that such an experiment has been made with the more recently used a.r.s.enates - which can be used with a much higher amount of a.r.s.enic to the gallon because they do not injure the foliage - to determine whether the herbage below would be poisonous or not. Presumably not, because modern spraying does not admit as much loss from run-off as was the case with old Spraying methods.
Pears on Quince.
I saw some time ago a report of some French experiments in grafting the pear onto quince root. The report said the fruit produced was much larger than on any other root.
Most of our common pears will take readily when grafted on the quince, but the quince transforms them into dwarfed trees. Such trees do produce, with proper care, very fine fruit. The remark about their being better than on standard trees refers, however, to other climates than ours, for California grows just as large pears on standard trees as can possibly be grown, while where conditions are harder the higher culture of the dwarf tree and the protection which it requires from climatic hards.h.i.+ps, gives the dwarf tree the advantage. You can get pears on quince roots from most of our California nurseries.
One Thousand Questions in California Agriculture Answered Part 12
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