366 Report of the Horticulturist of the 



Yoimgstown, N. Y. The frame over which the sheet is stretched 

 is suspended from the shoulders of the workman who does the jar- 

 ring, occupying a position at the center of the slieet. The sheet 

 slopes towards several tin cups in which the bugs are collected. 



The curculio catcher commonly used in the vicinity of Geneva 

 is one made by Mr. J. B, Johnson, Geneva, IST. Y. The frame over 

 which the sheet is stretched is attached to a two-wheeled cart. The 

 sheet slops downwards to the centre where an opening allows the 

 buo-s to be swept into a tin box underneath the sheet and between 

 the wheels. A slit at one side allows the cart to be rim directly under 

 the tree and two or three jars bring down the bugs which are swept 

 into the box above mentioned, by means of a short handled broom. 

 The cultivated ground is made smooth by rolling to prepare it so 

 that the cart wheels will pass over it readily. 



Jarring should be begun as soon as the fruit sets and be continued 

 as long as the curculio are found in sufficient numbers to pay for 

 jarring, which is usually for about three weeks. Early morning is 

 the best time to do this work. Towards the middle of the day, 

 especially on bright days, they are more active and apt to fly. The 

 beetle feeds on the plum leaves and for this reason spraying the 

 trees with Paris gi-een or London purple has been advocated. ISfo 

 doubt the insects may be killed to some extent in this way but the 

 foliage of stone fruit trees is particularly liable to injury from Paris 

 green or London purple so that these poisons must be used sparingly 

 and much diluted. One pound of either may be used with about 

 three hundred gallons of water, or mingled in the same proportion 

 with Bordeaux mixture. In either case at least three times as much 

 fresh slacked lime should be added as the weight of the poison . Should 

 frequent rains come and wash off the poison from the foliage it would 

 necessitate spraying again if spraying alone be depended on to fight 

 the insect, and the cumulative effects of the different sprayings 

 would probably result in injury to the foliage. So while it is doubt- 

 less true, that spraying against curculio may be practiced with good 

 results, still in the hght of evidence thus far presented on this sub- 

 ject, we would prefer not to spray with an arsenite more than twice ; 

 follow the spraying with jarring if it is found necessary. 



Quince. 



Blight. Fire Blight. — This is the same bacterial disease as the 

 pear blight which is discussed on page 359. ' 



