Julv 17. 1915 



HOETIGULTURE 



67 



ROSE GROWING UNDER GLASS 



- CONDUCTED BV 



Questions by our readers in liue with any of the topics presented on this page will 

 by Mr. RuzieUa. Sut-h. oommunioations should invariably be addr. ! 



H(li;illv receiTcd and promptly answered 

 !i("e ot HORTICULTURE. 



Late Planting 



With low pi-ices all through the spring months many 

 of the larger gTowers held on to their stock a little 

 longer, thus making up the shrinkage in returns. Many 

 smaller growers did the same, and the result is that 

 there are a great number of greenhouses that have not 

 )-et been planted. This work sliould now be pushed 

 along, for we have every promise of a wet, dark fall, as 

 there has been no dry weather this summer so far. 

 Our section at least has had more rain than needed. 

 If the planting is put off much longer, and a dark fall 

 should follow, the plants will not have a show to be- 

 come established before winter comes along, and the 

 result will be poor stock, and plenty of worry for the 

 grower. Where old plants are to be run over, or planted 

 again, this should especially be attended to at once, as 

 these are likely to suffer more than the young plants. 

 In the rush of work, however, do not neglect to clean 

 out the benches well, and see that they are properly 

 whitewashed with a little copper sulphate added to the 

 lime. This will kill all the fungus spores that it 

 touches, and will help do away with the many diseases 

 that the rose is subject to. Clean out underneath the 

 benches, making sure that all the old soil is removed 

 and wheeled out of the house. ^\nien through planting, 

 it is well to clean out once more, and then scatter a 

 little fresh slacked dry lime under the benches. This 

 will make a large number of insects seek healthier 

 climate, if it does not kill them at once. 

 Mildew 



Do not make the mistake so often made by growers, 

 and let all your fires out too soon. The weather so far 

 has been remarkably cool, and there were only a few 

 nights that the houses did not need any heat. A little 

 steam to take the chill off in the early morning when 

 the temperature outside drops away down, will go a 

 great way to prevent mildew. The houses should not 

 be allowed to go below 64 deg. F. at any time now, as 

 the warm days run the temperature in the daytime 

 away up. If the houses are allowed to drop as low as 

 54 the difference between the day and night air is too 

 great. The little coal and the little extra attention 

 that the houses will need when nteam is kept on will be 

 well paid for in the long run. Cut roses that arrive in 

 the crowded markets now must lie strictly first class or 

 the price that they will bring will not be a profitable 

 one for the grower. Keep the fires on until they are 

 not needed. Then paint a little sulphur on the pipes 

 liere and there, about every ten feet on one steam pipe, 

 for eveiy twenty feet of \vidth. Thus a house forty 



feet wide will get two painted pipes, where one twenty 

 feet wide will only get one. Should mildew appear 

 here and there in spite of all precautions and care, dust 

 a little sulphur over it at once, or spray with Fungine. 

 Do not let it spread, but check it at once. 



Icing the Shipping Boxes 



This will not be necessary where the icebox can be 

 kept cool enough, but where natural ice is used to keep 

 the box cool, it is bound to run a shade warmer than 

 is best, and it will be necessary to ice the stock as it is 

 shipped to the market. In doing this make sure that 

 the ice is placed so that none of the buds will come in 

 contact with it, as it will take the color out of them 

 where it does touch. Beauties are the easiest to handle, 

 as they are mostly long stemmed, and the ice can be 

 put at the bottom of the boxes where there is no danger 

 of its coming into contact with the buds. 



Lining Boxes 



It does not pay to u.se too little paper in the boxes 

 during the hot weather, for the roses inside are bound 

 to suffer. We put paper in the lioxes in winter to keep 

 the roses warm, and in the summer we ought to use it 

 to keep the roses cool. Paper is a very poor conductor 

 of heat, and several sheets in the boxes will keep the 

 sun's hot rays out as much as it will keep Jack Frost 

 out in the winter. Use at least four thicknesses and 

 where ice is used, use six. 



Fumigation 



Do not neglect this in tlie least. This applies espe- 

 cially to the young newly planted houses, which should 

 be kept clear of all insects at all costs. With the cool 

 nights it is a very simple matter. Make sure that the 

 houses are below 73 when you fumigate. The plants 

 must not be dry either, for they are liable to burn. In 

 using stems, make sure that they do not burn with a 

 flame, as that would make hot smoke, which would be 

 very apt to lie injurious to the plants. Arrange so, if 

 possible, that the plants will be syringed the next day. 

 This \vill do away with a great many more insects. 

 Never use tobacco stems in old houses where roses are 

 still cut for the market. The blooms would likely be 

 ruined, and will have an awful odor for a time to say 

 the least. If the weatber is too warm to fumigate, 

 spray with any of the insecticides advertised in Horti- 

 culture. We prefer to fumigate, as some men cannot 

 be trusted to mix insecticides for spraying just so, and 

 the result would be that they would either be too strong, 

 >!■ else so weak as to be worthless. 



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