Part 14

There are many causes responsible for this failure of honey crops. Bad management, no management at all, antiquated or impossible equipment, locality, etc., are all factors contributing towards a shortage in the honey crop, but poor queens are the most universal cause of disappointment. The queen being the mother of the whole colony of bees, the hive will be what she is. If she is of a pure, industrious, gentle, hardy and prolific strain, the colony over which she presides will be uniform, hard working, easy to handle, easy to brave the inclemency of the weather and the severity of our winters, and populous in bees. The bees partake of the characteristics of the queen.

The fact of the matter is, that more than 90% of our Minnesota queens are either black Germans or hybrids, neither of which lend themselves to pleasant and profitable beekeeping. Having been inbred for years will make them still less valuable, and most of them have been inbred for generations.

Among many things in which the beekeepers of Minnesota should begin to improve their beekeeping possibilities, the necessity of good queens comes first. With a new strain of pure, gentle, industrious, leather colored Italian bees, their love for beekeeping should receive a new impetus, leading them to better equipment and better management.

It was with this point in view that the University of Minnesota has secured the best breeding queens obtainable from which to raise several thousands of queens for the use of beekeepers of the state.

These queens will be sold each year during the months of June, July and August at a nominal price of fifty cents each, and not more than three to each beekeeper. The University is ready to book orders now. There is such a demand for these queens that last year only one-quarter of the orders could be filled. Given three pure Italian queens to start with, a beekeeper may easily re-queen his whole bee-yard in the course of a year. Detailed printed instructions how to proceed will be sent out to all buyers of queens free of charge.

Time has come to start bee-keeping on a more profitable basis, and the first step towards better success should be a new strain of queens.

ENTOMOLOGICAL NOTES

By F.L. WASHBURN, Professor of Entomology, University of Minnesota.

RABBITS; RABBIT-PROOF FENCES; FIELD MICE.

Probably the thoughtful orchardist has before this date visited his orchard and trampled the deep snow down around his young fruit trees for a distance of two feet on all sides of each trunk, thus preventing rabbits from reaching the trunk above the protected part, or from eating the branches in the case of low-headed trees. Even at this date, this should be done where the snow lies deep. Frequent tramplings about the young trees also protects the trees from possible injury by field mice working beneath the snow.

This leads us to speak of our experiences with so-called "rabbit-proof" fencing. In the summer time, when an abundance of food is everywhere offered, these small mesh fences are generally effective barriers, but, in the case of the low fences, drifting snow in winter permits an easy crossing, and in the case of the higher fences which have the narrow mesh at the bottom, gradually widening toward the top, it is possible for a rabbit to get his head and body through a surprisingly small space between the wires. The writer was astonished, late last autumn, previous to any snowfall, to see one of these pests, which had jumped from its "nest" in his (the writer's) covered strawberry-bed, run to the inclosing fence, which was provided with the long, narrow mesh above alluded to, raise himself on his hind feet and push his way through a space not more than three inches wide. It would seem, therefore, that one should accept with some reservation the assertion that these fences are actually "rabbit-proof."

PREPAREDNESS FOR (INSECT) WAR.

However one may regard the agitation for or against preparing this country for (or against) war, we are doubtless of all one mind as to the desirability of being prepared to successfully cope with the various insect-pests which are sure to arrive during the coming spring and summer to attack shrubs, fruit trees, berry bushes, melons, cucumbers and practically all of our vegetables. The Entomologist has every reason to be thankful that, early last spring, he laid in a supply of arsenate of lead, Black Leaf No. 40, commercial lime-sulphur, tree tanglefoot, tobacco dust, also providing himself with an abundance of air-slaked lime and a spraying outfit suitable for use in a small experiment garden and orchard at Lake Minnetonka. All gardeners, particularly those who cannot quickly purchase such things on account of distance from a supply, should take time by the forelock and obtain materials now, that they may be ready at hand when very much needed.

AN IMPORTANT DISCOVERY IN ENTOMOLOGY.

An item of importance, and quite far-reaching in its significance is the fact (as reported at the recent meeting of entomologists at Columbus) that the odor in stable manure which attracts house flies, has been "artificially" produced, if that expression may be used, by a combination of ammonia and a little butyric acid. A pan of this, covered by cotton, attracted hundreds of flies which deposited their eggs thereon. The possibilities of making use of this new-found fact are most promising, and the discovery is especially significant in that it opens an immense and practically an untried field in entomological work; that is, the making use of different odors to attract different species of insects. A series of experiments in this direction with the Mediteranean fruit fly, also recently reported, have been most surprising but too extensive to permit of discussion here.

* * * * *

Nurserymen intending to import currants or gooseberries from Europe will be interested in learning that there is a possibility of a federal quarantine on shrubs of this genus grown abroad.

State Entomologist Circular No. 36, issued in January, 1916, and entitled the "Red Rose Beetle," by S. Marcovitch (illustrated), is available for distribution. Application should be accompanied by one cent stamp.

SECRETARY'S CORNER

PLANT COMMERCIAL ORCHARDS.--It is well established that in certain localities at least in the state commercial orcharding is on a safe basis, offering reasonable financial profits if managed by those who take pains to inform themselves on the subject, and are then thorough going enough to practice what they know. This spring will be a good time to plant such an orchard. Orchard trees of suitable size were never more plentiful in the nurseries, and undoubtedly the sorts which you wish to plant can be readily purchased. Ask some of your nearest nurseries for prices as to 500 trees, either two or three years old, whichever you prefer.

GIVE YOUR NEIGHBOR A CHANCE TOO.--This means that you should not be satisfied simply in having secured something of value to yourself, but pass on to others the valuable opportunity which you yourself are enjoying. It is a well established principle of life that the greatest happiness consists in giving happiness to others. As any member can do his neighbor a favor, without any expense to himself, and indeed with profit, by putting his neighbor in touch with the valuable facilities offered by the Horticultural Society, there is evidently a double reason why he should do so. For the small membership fee charged you can put into his hands all the material referred to on the next page. Read it over and lend your neighbor a helping hand.

TIMELY NOTES IN OUR MONTHLY.--There will be in our monthly magazine during most of the rest of the months of the year five pages devoted to timely topics. The experience of the past year or two in this direction encourages us to believe that this will prove to be the most valuable portion of our monthly. One page, as heretofore, will be operated in the interest of garden flowers, edited by Mrs. E. W. Gould; another page, prepared by Prof. R.S. Mackintosh, under the head of "fruit notes," which subject indicates clearly its purpose. Prof. Francis Jager, the Apiarist at University Farm, will prepare another page, pertaining to the keeping of bees. Prof. F.L. Washburn, the State Entomologist, will have a page devoted to insect life as interesting the horticulturist. The fifth page will be handled by Profs. A.G. Ruggles and E.C. Stakman jointly devoted entirely to the subject of "spraying." Each issue of the magazine will contain these notes as applying to the month just following. They will be found well worth studying.

ARE YOU A LIFE MEMBER?--Of course if you are interested in the work of the Horticultural Society and likely to live ten years you ought to be a life member. Experience with this roll for twenty-five years now as secretary of the society indicates that a life membership in the society is almost an assurance that you will prolong your days. A list of deaths in the life membership roll published year by year would indicate that our life members are going to be with us far beyond the average span of human life. Since publishing a list of new life members in the February Horticulturist, there have been added to this life list five names: Tosten E. Dybdal, Elbow Lake, Minn.; Gust Carlson, Excelsior; A.N. Gray, Deerwood; A.M. Christianson, Bismarck, N.D.; Chas. H. Lien, St. Cloud.

If you have already paid your annual fee for this year, send us $4.00 more and your name will be placed on the life roll with the balance of $5.00 to be paid one year from how--or send $9.00, and that makes a full payment.

While it is not the intention to publish anything in this magazine that is misleading or unreliable, yet it must be remembered that the articles published herein recite the experience and opinions of their writers, and this fact must always be noted in estimating their practical value.

THE MINNESOTA HORTICULTURIST

Vol. 44 APRIL, 1916 No. 4

Dwarf Apple Trees.

DR. O.M. HUESTIS, MINNEAPOLIS.

I have here a sample of McIntosh Red grown on a standard tree--a beautiful apple and well colored. Here I have the same variety grown on one of my dwarf trees, not quite as well colored.

Now, the dwarf tree that bore these apples has been planted two years; this is the second year of its growth in my own ground at Mound, on Lake Minnetonka.

I have sixty dwarf trees, five of which have been in eight years, and they have borne six crops of apples. The last ones I got two years ago, and they were two years old when I got them. I planted five of these dwarf trees at the same time that I planted forty standards. The dwarfs have borne more fruit than the standards up to date. Of course, they have only been in eight years. The standards are Wealthy, Duchess, Northwestern Greening and one or two Hibernal and some crabs; the dwarf stock is the Doucin. It is not the Paradise stock, which is grown in England largely and some in France and Germany. My trees are a little higher than my head, and I keep them pruned in a certain way. One of my older trees the second year had ninety-six apples on it. It was a Yellow Transparent, and they came to maturity very well. Several of my trees are about four feet high. I had from twenty-five to fifty apples on them, and they all ripened nicely. The Red Astrachan and the Gravenstein and one Alexander had a few apples on them, and I notice that they are well loaded with fruit buds for another year, which will be the third year planted.

The care of these trees is probably a little more difficult than that of the standard tree, or, at least, I give them special care. I have attempted to bud into some of these, but in my experience they do not take the bud very well. I can take a bud from one of the dwarfs and put it on a standard, and it will grow all right, but I can't take a bud from a standard and put it on a dwarf as successfully. I judge it is because it isn't as rapid growing as the Hibernal, for instance, would be. I notice the Hibernal is the best to take a bud because it is a rapid growing tree and an excellent one on which to graft.

If I wanted to plant an orchard of forty or fifty acres I would plant standard trees and would put the dwarf between the rows, probably twelve feet apart. Mine are about ten feet apart, some of them a little more, but I have two rows eight feet apart each way, nine in each row, which forms a double hedge. I expect them to grow four feet high. I will prune them just as I wish to make a beautiful double hedge between two cottages.

In pruning those that have been in eight years I have tried to use the renewal system as we use it on grapes sometimes. I take out some of the older branches and fruit spurs that have borne two or three years. They must be thinned out. I counted twenty apples on a branch a foot long. I let them grow until they are large enough to stew and then take some off and use them, when apple sauce is appreciated. I thin them every year and get a nice lot of good fruit each year.

I have noticed for two years that I have about ninety-eight per cent. of perfect apples, not a blotch nor a worm. I spray them all, first the dormant spray and then just as the blossoms are falling, and then one other spraying in two weeks and another spray three weeks later.

Mr. Ludlow: Do you mulch the ground?

Dr. Huestis: Well, I dig up the ground a little in the spring. The roots are very near the surface, not very penetrating, and I cultivate around the roots, but I am careful not to cut them. Every fall I put a good mulch of leaves and hay around them. I have been a little fearful they would winter-kill. I wouldn't lose one of them for ten dollars, and I think it well to mulch them, leaving a little space at the base.

Mr. Andrews: Are the roots exposed in some cases?

Dr. Huestis: Yes, I noticed on two of the older trees, those that have been in eight years and have borne six crops, you can see the roots on one side, the top is exposed a little, and I think it would be well to put a little dirt on those another year. The stock of these dwarf trees is slow growing with a rapid growing top, and that is what dwarfs them. I have transplanted one tree three times, which would make four plantings in eight years, and that tree bore almost as much fruit last year as any of them. In another case once transplanted I think the tree is better than the others that were left.

As I said before, if I was planting an orchard I would put dwarf trees between, and by the time they had borne three or four crops, and you were expecting a crop of fruit from the standard trees--about seven years from the time you put them in--I would put the dwarf trees as fillers, costing about forty cents apiece, and by the time they are bearing nicely your friends would have seen those, and I believe would want them at the time you want to take them out. I believe I could sell any of mine for three or four dollars apiece. I think that would be one way of disposing of them after you wanted to take them out of the standard orchard on account of room. That is just a thought of mine.

When I got my first ones eight years ago I gave one to a man who lives in North Minneapolis, at 1824 Bryant Avenue North. Any one can see it who lives up in that section. The first year he had twenty-nine apples, and it has borne each year since. The one which I have transplanted and which bore last year is a Bismarck. It is a little better apple, in my mind, than the Duchess. It is a good deal like the Duchess but is a better keeper and has a better flavor than the Duchess.

I would like to read a quotation to show that the dwarf tree is not a late thing. Recommending dwarf trees for gardens, "Corbett's English Garden," published in 1829, says: "I do hope if any gentleman makes a garden he will never suffer it to be disfigured by the folly of a standard tree, which the more vigorous its growth the more mischievous its growth to the garden."

Marshall says, "The fewer standard trees in the garden the better." Also that the dwarfs are less trouble to keep in order and are generally more productive, and that "placed eight or nine feet distant, pruned and kept in easy manner, they make a fine appearance and produce good fruit." W.C. Drury, highly regarded as a modern English authority, writing in 1900 says: "For the private garden or for market purposes the dwarf, or bush, apple tree is one of the best and most profitable forms that can be planted." He also says: "The bush is one of the best forms of all, as it is of a pleasing shape and as a rule bears good and regular crops."

Mr. Clausen: Don't you have trouble with the mice?

Dr. Huestis: No, sir, have never seen any.

Mr. Clausen: I had an experience a few years ago. My neighbor made a mistake; he was hauling straw around his apple trees, and he happened to take one row of mine. We had no fence between us--and he laid the straw around the trees. I found when I came to examine these trees in the spring they were all girdled around the bottom. I am afraid to mulch.

Dr. Huestis: I never have taken any chances. Ever troubled with the mice at your place, Mr. Weld?

Mr. Weld: A little.

Dr. Huestis: I have never had any trouble with the mice. I always put on a lot of old screen that I take from the cottages that is worn out and put a wire around it so the mice can't get through it. We must protect from mice and rabbits.

Mr. Kellogg: How soon do your dwarf trees pay for themselves?

Dr. Huestis: I don't know. I reckon these four have paid about twelve per cent. on fifteen or twenty dollars this year, and they have right along. They have paid me better so far during the eight years than the standards. That might not apply in eight more years, but for a city lot, a man who has fifty square feet, how many apple trees could he put in that seventeen feet apart? Nine standard trees. In that same plot of fifty feet square he could put in sixty-four dwarfs, and it would be a nice little orchard. I think it is more adapted to the city man. The ordinary farmer would neglect them, and I should hate to see a farmer get them, but I would like to do anything for the man living in the city with only a small plat of land--my vocation being in the city, my avocation being in the country.

Mr. Kellogg: Are those honest representations of the different apples from the dwarf and the standard?

Dr. Heustis: I don't know. Those are a fair sample of those I found in a box on exhibit and are Red McIntosh. They are better colored than mine, most of them are like this (indicating). I find the Yellow Transparent that I have budded on the standard better on the dwarf than on the standard.

Mr. Kellogg: Does it blight any?

Dr. Huestis: No blight; there hasn't ever been a blight. I think that is one reason why I feel I could recommend them quite conscientiously. Other trees have blighted when the conditions were favorable.

* * * * *

TWENTY-FIVE BY SEVENTY FOOT PLOT WILL PRODUCE ENOUGH VEGETABLES FOR A SMALL FAMILY.--Even the smallest back yard may be made to yield a supply of fresh vegetables for the family table at but slight expense if two or three crops are successively grown to keep the area occupied all the time, according to the garden specialists of the department. People who would discharge a clerk if he did not work the year round will often cultivate a garden at no little trouble and expense and then allow the soil to lie idle from the time the first crop matures until the end of the season. Where a two or three crop system is used in connection with vegetables adapted to small areas, a space no larger than twenty-five by seventy feet will produce enough fresh vegetables for a small family. Corn, melons, cucumbers, and potatoes and other crops which require a large area should not be grown in a garden of this size. Half an acre properly cultivated with a careful crop rotation may easily produce $100 worth of various garden crops in a year.

Plums That We Already Have and Plums That Are on the Way.

_The Brown Rot (Monilia) a Controlling Factor._

DEWAIN COOK, FRUIT GROWER, JEFFERS.

By the term "plums we already have" for the purpose of this paper we shall include only those varieties that have given general satisfaction over a large territory and for long term of years, and in the writer's opinion every one of such varieties are of full blooded, pure Americana origin.

The DeSoto takes the lead of them all. It undoubtedly has more good points to its credit than any other plum we have ever grown. The Wyant and the freestone Wolf are considered as being the next two most popular varieties. These were all wild varieties, found growing in the woods of Wisconsin and Iowa many years ago.

There are a few other Americana varieties that are nearly as good as are some of those enumerated, but at present we shall not attempt to name them. There are many otherwise fine varieties that are not included in this list of plums we already have, but because of a certain weakness of the blossom they require to be intermingled with other varieties, or the blossoms do not fertilize properly. They only bear well when conditions are very favorable. We class such varieties as being not productive enough.

Many attempts, with more or less--generally less--success have been made to improve our native plums through the growing of seedlings. Mr. H.A. Terry, of Crescent, Iowa, has done more of such work in his day than any other one man. His method was to plant the Americana kinds, like the DeSoto, alongside of varieties of the Hortulana type, like the Miner, then growing seedlings from the best plums thus grown. From such cross bred seedlings Mr. Terry originated and introduced a great many very fine varieties. But where are they today? The Hawkeye and the Terry are about the only ones the general public knows very much about. I will venture this statement, that as far as I know there is no variety of native plum in which there is an intermingling of Hortulana or Chickasaw type that has proven productive enough to be generally profitable.

The Surprise plum belongs to this type, as also does the Terry plum. The Terry plum we want to keep a while longer, not because it is a mortgage lifter for the growers but because of the extraordinarily large size of its fruit, as well as for its fine quality.

There are many injurious insects and fungous diseases that tend to make life a burden to the man who tries to grow plums in a commercial way. Among the insects are the plum curculio and the plum tree borer, better known as the peach tree borer. The curculio sometimes destroys all of the fruit on the tree, and the borer very often will destroy the whole tree of any variety.

Among the fungous diseases are the shot hole fungus and the plum pocket fungus, but the worst of all is that terribly destructive disease of the plum known as the brown rot. This brown rot fungus sometimes destroys the whole crop of certain varieties, besides injuring the trees sometimes as well. This one disease has done more to make plum growing unpopular than all other causes combined. Give us a cheap and efficient remedy, one that will destroy the rot fungus and not do injury to the foliage, buds or tree, and a long stride will have been made towards making plum growing popular as well as profitable.

_Japanese hybrid plums._--Just now the Japanese hybrid varieties are attracting considerable attention. One prominent Minnetonka fruit grower said this to me about them: