,44 FRUITS AND VEGETABLES UNDER GLASS 



Different materials may be used for fumigation witii good effect. Years 

 ago the old reliable remedy was tobacco stems, but witii the great advance that 

 has been made in the greenhouse industry- within the last twenty-five years we 

 have more modern insecticides with which to fight insect pests. Our thanks 

 are due to the manufacturers for putting the various nicotines and formulas 

 upon the market in a condensed form, which simplifies our labors, and makes 

 them more effective. Each grower prefers his own particular brand of insecti- 

 cide. As the old saying goes, " There are no two alike." If we all were of the 

 same mind, trade would soon fall away. If you have found an insecticide that 

 means death to the insect with no harm to the tree, hold on to it, until you are 

 fully satisfied that you have found something better. 



Manufacturers of insecticides and fungicides have kept pace with the 

 greenhouse builders and the growers, so that we now have an excellent assort- 

 ment of these remedies. An effective insecticide or fumigant around the green- 

 house is the best friend of the gardener or florist. Nico-fume, tobacco paper 

 and aphis punk are excellent for eradicating both green fly and black fly. Nicoti- 

 cide and XL. AH fumigating liquid may also be used with excellent results. 

 Full instructions for using the different brands are given with each. It is well, 

 however, to be cautious in using a new insect eradicator until thoroughly ac- 

 quainted with its virtues. It is an easy matter to increase the strength grad- 

 ually, until the desired results are obtained. An overdose is injurious to plant 

 life. It is important, also, to select a suitable evening for fumigating. It should 

 be a calm, quiet night, for two reasons: The smoke will stay in the iiouse 

 longer, and it will distribute itself more evenly over the whole interior. Abo\e 

 all things, avoid fumigating too strongly. 



The spread of red spider depends chiefly upon the man employed in syring- 

 ing the trees. It is not so much a question of the quantity of water used, as 

 of the way in which it is done. I am opposed to very heavy spraying. The 

 main point in fighting this pest is to spray underneath the foliage effectively, 

 which any man can do who is interested in his work. A check in any way — 

 lack of moisture at the roots, or any other neglect — will induce the spread of 

 red spider, thrips and other troubles. The best policy here is to adopt measures 

 that will prevent their appearance, but if they do come, in spite of all precau- 

 tions, then eradicate them as quickly as possible, which can be done by effective 

 spraying, pro\ided there is a good force of water. 



Leaf roller is a very destructive little insect, which is more trouble- 

 some among Pears, Plums, Apricots, Cherries and Apples than among 

 any other fruit. It is more noticeable in some seasons than in others, and if 

 allowed full sway it will do considerable damage. It usually appears just as 

 the young foliage begins to unfold, at a stage when we cannot fumigate or spray 

 because the trees are in blossom. It is easy to detect on the tender foliage, 

 and may often be found among the fruit blossoms, busily eating off the pistils, 

 thereby destroying both bloom and fruit. Nearly all of these noxious pests 

 have a clever way of protecting themselves; though diminutive in body, 

 they are strong enough to roll up the leaf, with the help of their web, hiding 

 inside, as a protection against harm. Or, they will fasten two leaves together 



