renders the treatment a little different from that for the Apricot 

 scale. As the eggs hatch in June and July the best time for fighting 

 them probably will be during the period shortly after they hatch and 

 while the young scales are yet tender. At this time during late 

 June and early July, then a spray, or better, two or three of them at 

 intervals of two weeks, of kerosene emulson, diluted ten times, 

 should be very effective. 



THE TULIP SCALE. 



Eulecafiiiim tulip if erce (Cook), 



This scale is quite common on wild and cultivated tulip trees 

 throughout the state. It is the largest of all the soft scales, often 

 reaching a diameter of one-third of an inch. It also attacks the 

 linden, lime, magnolia and clover. 



The scale as it appears in summer is soft and somewhat hemis- 

 pherical, gray in color, slimy and repulsive. The female continues 

 to grow until late in August. Early in September it becomes mature, 

 and the young begin to appear. These little black creatures begin 

 feeding at once and make some growth before winter sets in. 



The best time to deal with this insect is in September when the 

 young are settling. If only a single twig or branch is infested, the 

 best way is to cut it off and burn it. Spraying thoroughly about the 

 middle of September with kerosene emulsion one part, water five 

 parts will kill all the larvae it reaches and this is perhaps the most 

 effective method. Strong whale-oil soap suds may be used during 

 the winter effectively. It must not be made weaker than one pound 

 to one gallon of water and the application should be thorough. 



THE HEMISPHERICAL SCALE. 



Saissetia hemisphcerica (Targ). 



This is a very common scale found in greenhouses and dwellings. 

 Its food plants are many, among which may be named ferns, palms, 

 orchids, peach and orange trees. It is hemispherical in shape being 

 about one-eighth of an inch in diameter and one-twelfth of an inch 

 in height. The color varies from light brown when young to dark 

 brown when old. These insects are found both on leaves and stems, 

 and it probably breeds continuously throughout the year. Kerosene 

 emulsion or soap and water can be used as sprays and greenhouses 

 can be fumigated with hydrocyanic acid gas to destroy this insect. 



