Showing affected Leaves. 



Perfect Insect, magnified 400 Times. 



work their way under the surface of the leaves, and more especially the 

 under sides, and these have a blistered appearance. The insects remain 

 in chambers within these blisters, and are seldom to be found upon the 

 surface of the leaves. As the season advances, the blisters increase in 

 size and number, and those first formed assume a brown appearance very 

 similar to that caused by the Scab Fungus. In fact, the effects of the 

 insect are often supposed to be those of the fungus, which is unfortunate, 

 as the remedies for these pests differ widely. Kemedies and preventatives : 

 ] . Burn the leaves of affected trees when practicable. 2. Kerosene 

 Emulsion used as a spray when the buds are bursting into leaf, again 

 after the fruit has set, and a further spraying after the crop has been 

 gathered. 3. Resin Compound used as recommended for Kerosene 

 Emulsion. 4. Paint the trees in the winter with a mixture of two parts 

 lime, one of sulphur, and one of soft soap, adding sufficient water to 

 make the composition workable. Further information about the remedies 

 recommended will be found at page 98, volume 1. 



Bed tipider. This troublesome minute insect will sometimes attack 

 the foliage of Pear trees, and more especially towards the end of the 

 summer after protracted dry weather. For treatment see page 82, 

 volume 1. 



