Winter Protection. Unless in an exposed place, marsh hay is the best and cleanest mulch, but high winds may roll it off. Clean straw away from the tailings of the machine is next best. For small acreage if one inch can be put on as soon as the ground is frozen a half inch, it will save the many freezings and thawings before winter sets in. For large acreage it is not practical to cover till frost will hold up a loaded wagon. Two inches of mulch, that covers the plants and paths from sight is enough, but I see you cover deeper, from four to twelve inches in Minnesota, and often smother the plants. If we could have a snow blanket come early and stay on late in spring, that would protect the plants, but we want the mulch also to protect from drouth and keep the berries clean. A January thaw is liable to kill out any field that is not properly mulched.
A two inch mulch will not hinder the plants coming through in spring; four inches will require part of the mulch raked into the paths; if plants don't get through readily loosen the mulch. I have known some successful growers to take off all the mulch from the paths in spring and cultivate lightly but thoroughly, then replace the mulch to protect from drouth and to keep the berries clean, but I don't think it pays.
Weeds. In the best fields and beds I ever saw there will come up an occasional weed in spring, and it pays to go over the ground with a spade or butcher knife and take out such weeds. We almost always get a drouth at picking time, better a drought than too much rain. A good straw mulch will usually carry us through.
Irrigation. If irrigation is attempted the fields must be prepared before planting to run water through between the rows. Sprinkling will not do except at sundown. Rain always comes in cloudy weather; you cannot wet foliage in sun in hot weather without damage. A good rainfall is one inch, which is a thousand barrels to the acre, so what can you do with a sprinkling cart? Showers followed by bright sunshine damage the patch.
If your plants are set too deep they rot, if too high they dry, if not well firmed they fail. When I have used a tobacco planter I have had to put my heel on every plant. Of course you know that newly planted June varieties must have the blossom buds cut out, and everbears bearing must also till July.
Picking. The man who has acres to pick must secure his boxes the winter before and have at least part of them made up if they are to be tacked. I have found a boy can make up boxes as fast as thirty pickers can fill. If you use the folding box no tacks are needed. Too many boxes made up ahead are liable to be damaged by the mice.
Pickers. Engage your pickers ahead; agree on the price and that a part of the pay is to be kept back till the close of the season, which is forfeited if quitting before time. If pickers are too far away, transportation must be furnished—free boxes of berries are appreciated by the pickers.
Marketing. Sometimes the marketing of the fruit is harder than the growing of it. If enough is grown form an association to sell it, get advice from a successful association how to form and how to run it. Sometimes a well made wagon, a good team and a good man can sell from house to house in the country and city and make good returns. In this way you get back your crates and part of the boxes. I know a successful grower in Iowa, who sold his crop of ten acres to the farmers and city people, they doing their own picking and furnishing their own boxes, at a given price. All the proprietor had to do was sit at the gate and take in the cash. It is worth a good deal to know how to grow the best of strawberries and often it is worth more to know how to turn them into cash.
What Varieties? Dunlap and Warfield have a general reputation for profit, can be picked together and sell well; dark color, good canners and good shippers. If you want a third variety take Lovett. Some of your growers want nothing but Bederwood, but it is too light and too soft to ship, though it is a good family berry. I expect Minnesota No. 3 will soon be the only variety you will want of the June kinds.
Insects. Winter drouth often injures the roots and some lay it to insects. The winter of 1899 was the worst winter drouth I ever knew; it killed every thing. If you are troubled with the crown borer, root lice, leaf roller or rust, grow one crop and plow under, or move your fields a good distance from the old bed. What shall be done with the old bed? If you have insects or rust plow under and get the best place to start a new bed, and don't set any of your own plants if you have insects or rust—and be sure you buy of a reliable grower.