Dbckmbxb 11, 1019. 



The Florists^ Review 



37 



CARNATION LEAT-SPOT. 



I bought a large number of carnation 

 plants in September from a Chicago 

 firm and they looked like fine, large 

 plants. I planted them the same day 

 they arrived and have given them every 

 care possible; all at once, the Good 

 Cheer variety started to go down. They 

 seem to be affected with some kind of 

 black spot, which affects the leaves 

 first and goes on down into the plant. 

 I have picked off all diseased foliage 

 and worked in a little lime in the soil. 

 What else can -I do? I am sending you 

 some of the foliage to examine. 



A. L. C— Tenn. 



Your plants are affected with the 

 disease known as carnation leaf-spot. 

 This disease is usually started by too 

 much moisture on the foliage and takes 

 on its most virulent form during ex- 

 treme heat. These plants, having been 

 transported from a cool northern cli- 

 mate to yoHr much warmer climate at 

 a time when growth is rapid and soft, 

 were naturally susceptible to this dis- 

 ease. I have found Good Cheer more 

 prone to lose its foliage after being 

 benched than most varieties, but it al- 

 ways took hold and started off growing 

 well. Extremely large plants would 

 probably be more susceptible to this 

 disease than medium-sized* and better 

 matured plants. Pick off all the spotted 

 leaves you can find and then spray the 

 plants thoroughly with Bordeaux mix- 

 ture. Keep the atmosphere in your 

 houses slightly charged with the fumes 

 of sulphur by painting one of the steam 

 pipes in each house with a mixture of 

 lime, sulphur and water, using equal 

 parts of the lime and the sulphur. 



A. F. J. B. 



BRANCH-BOT ON HERAIJ}. 



We are sending you one Herald car- 

 nation plant and should like to know 

 what is wrong with it and what to do 

 for it. The trouble affects only the 

 Herald variety; other varieties receiv- 

 ing the same treatment, soil, etc., are 

 doing especially well. A few leaves 

 turn yellow on a branch and in a short 

 while the entire branch is affected and 

 dies; one by one the branches die until 

 the entire plant is dead. We should 

 like to plant something in place of the 

 plant^ that die out. We are wholesale 

 florists. What would you recommend 

 us to plant and what treatment should 

 we give it? Will soil that has been 

 used in the greenhouse during the past 

 season, well manured and plowed, be 



all right to put back in the greenhouse 

 this coming season; if not, what would 

 be best to plant or sow in that soil 

 to put it in first-class shape for green- 

 houses? S. B,— 111. 



Herald was always more or less sus- 

 ceptible to the branch-rot disease, 

 which is destroying your plants now. 

 There is little to be done to counteract 

 it. After it once destroys a branch of a 

 plant, the whole plant usually goes 

 sooner or later. Sometimes one can cut 

 away the affected branch and save the 

 plant, but not often. If a large per- 

 centage of the plants have died out, it 

 would probably be advisable to tear 

 out the balance and replant with some- 

 thing else. To fill in the spaces where 

 plants have died out would not prove 

 satisfactory, as more plants will die and 

 you would have a ragged looking bench 

 all the time. There are a number of 

 crops you could replant this space with 

 to good advantage. Snapdragons will 

 yield a good return if your market will 

 take them. Calendulas will also come 

 along quickly if you will procure good, 

 strong plants at once. Ten weeks' 

 stocks and fever-few will pay well and 



PROPAGANDA 



last year we saw some candytuft that 

 sold at a good profit. Delphinium 

 may be planted in now, will produce a 

 crop of good quality in April and May, 

 and always sells well. You will prob- 

 ably need some room for your young 

 carnation stock a little later and it 

 might pay you to keep the Herald going 

 until you need the room for potting up 

 your young stock, even though the yield 

 may be somewhat reduced. If you will 

 thoroughly cleanse the bench after 

 taking out the soil, no harm should be- 

 fall the young plants. That would pay 

 better than to plant with one of these 

 other crops and then later on tear out 

 perfectly good carnations to make room 

 for the young stock. A. F. J. B. 



FAIRY RING ON CARNATIONS. 



Please tell me what is wrong with 

 the carnation shoots which I am sending 

 you; also what the remedy is. Thenan- 

 thos is the only variety affected. The 

 trouble seems to start in cloudy, fall 

 weather and continue until the follow- 

 ing spring. I had a similar case last 

 year, which I attributed to a check in 

 the growth, but now I am certain that 

 that was not the trouble, as these were 

 especially strong plants, some carrying 

 twenty-five shoots when they were 

 housed in July and August. I use Nico- 

 fume and Nicoticide for spraying and 

 also sprayed once with salt; I hardly 

 think that could be the cause of the 

 trouble, since only a few plants are as 

 yet affected. I have not been able to 

 discover any worm or borer of any sort. 



E. F. C— Wash. 



Abe Martin Say*: 



Lafe Bud got pickled on violet water 

 t'day an' now he's sayin' it with flowers. 



Your Thenanthos plants are affected 

 with fairy ring. There were also some 

 red spiders on the leaves. You have a 

 rather peculiar condition in that you 

 have the red spider on account of lack 

 of syringing and you have the fairy 

 ring, which usually comes from too much 

 moisture on the foliage or in the atmos- 

 phere. It comes generally during a 

 warm, humid spell. Probably you did 

 not use the salt freely enough. One 

 thorough application each week should 

 keep the plants clean without any addi- 

 tional syringing. Overhead watering 

 should be discontinued after the plants 

 are established on the benches. 



The fairy ring is the more serious of 

 the two troubles and should be at- 

 tended to first. Pick off as many of the 

 affected leaves as possible. Then syringe 

 with all the force at your command, di- 

 rectly from the faucet. Use no salt. 

 After that, spray heavily with Bor- 



