350 Report of the Horticulturist of the 



flies mostly at night, so it is not commonly known. But we are all 

 familiar -with the work of its lavra, which causes the wormy 

 apples. 



The moth first appears about the time the trees commence to 

 bloom and soon begins t^ deposit her eggs. About fifty eggs in all 

 may be deposited by one insect. Later attacks may come from late 

 appearing moths or from a second brood . The eggs begin to hatch 

 in about a week after they are laid, so here we have a hint as to 

 when the first spraying should be made . 



Remedy. — Paris green is spra^^ed on the young fruit to poison 

 the insect before it eats into the apple. This insect is such a uni- 

 yersal pest, that where spraying is practiced to prevent the ravages 

 of apple scab, Paris green is usually combined with the Bordeaux 

 mixture, so that remedies for both pests are applied at the same 

 time. At the second spraying for apple scab, applied when the last 

 petals are falling from the fiowers, Paris green is combined with the 

 Bordeaux mixture. At the third sprayirg for apple scab, Paris 

 green is again combined with the mixture. One pound of Paris 

 green is used for from one hundred and fifty to two hundred gallons. 



If it is not thought necessary to spray for apple scab the Paris green, 

 mixed with lime and water, can be applied alone at the time speci- 

 fied above. But these two pests, the scab and the codling moth, 

 are so universal, and the cost of making the mixture is so small, 

 that it is by far the better practice to apply both remedies at once. 



Now to summarize: Where orchards are badly infested with 

 cankerworm, bud moth or the case bearer, the trees should be 

 sprayed with Paris green as soon as the leaf buds begin to unfold 

 in the spring. For apple scap, spray the trees with Bordeaux mix- 

 ture after the buds break but before tlie blossoms open as recom- 

 mended on page 346. If the trees are infested with the canker- 

 worm, bud moth, case bearer, codling moth, or any insect that chews 

 its food, Paris green should be combined with each Bordeaux mix- 

 ture treatment. 



Ajyricots. 



Fruit Rot. — This disease is more fully discussed under the sub- 

 ject of Cherry Fruit Hot on a subsecpient page. 

 " Leaf Blight. — The disease is caused by a fungus which also 

 causes the leaf blight on cherry and plum. The siiseased portion 

 usually drops out leaving a hole in the leaf. The apricot appears to 



