i6 



manure. Unless one has an extended knowledge of soil fertility, it 

 is best to avoid the use of all commercial fertilizers in green- 

 house culture. Greenhouse soils are as a rule provided with so 

 much plant food that the addition of fertilizers is not absolutely 

 necessary, and the formulas given for out door crops cannot be 

 followed. If it is desired to use fertilizers on greenhouse crops, con- 

 sult station authorities familiar with the subject of soil fertility. 



TREATMENT OF OUTDOOR PLANTS. 



APPLE. 



Leaf Spots, Sooty Mold, Scab. 



These can be controlled by spraying with Bordeaux mixture. 



Canker. 



Remove diseased twigs. Early spraying before the leaves appear 

 with lime and sulfur wash or strong copper sulfate solution (No. 4) 

 is most effective for this trouble. Allow no rotten fruit to remain 

 on the ground. (See apple maggot.) 



Crown=GaIl. 



This is becoming more common. Buy nursery stock free from 

 the disease, and if the young stock is affected, destroy it. 



Apple Maggot or Railroad Worm. 



Gather and destroy all fallen fruit once every day, or let fowls or 

 hogs run under the trees. They eat the maggots both in the fruit 

 and on the ground. 



Bud Moth. 



Spray with a stomach poison (No. 10. 11 or 12) when the buds 

 first open. Repeat just after the blossoms fall. 



Canker Worms. 



Band the trunks with tree tanglefoot : Oct. ist for the fall canker 

 worm ; band on the first warm day in March for the spring canker 

 worm ; or, spray as soon as the leaves open with a stomach poison 

 (No. 10 or 12). 



