214 Forty- fifth Report on the State Museum. 



Professor Smith recommends as the best remedy for this insect, and 

 a preventive of all injury if applied in time, fish-oil soap in the pro- 

 portion of one pound to eight gallons of water, put on with the cyclone 

 or Vermorel nozzle. 



Scale Insects on Camellia and Oleander. 



A lady has sent the following inquiry of scale insects which are 

 infesting her plants in Jacksonville, Ala. Reply was sent through the 

 Country Gentleman of March 25th, 1891. 



I inclose two leaves, one of Camellia japonica, the other of oleander, 

 both of which are infested with parasitic fungi. The disease spreads 

 over the plants, which alternately succumb to its attacks, in the green- 

 house as well as in the open air. Will you kindly inform me what 

 it is, and if there is any known means of its prevention. 



The leaves give no indication of fungus attack (upon the authority 

 of State Botanist Peck), but are infested with scale-insects. The 

 oleander shows on its underside, along the midrib and scattered over 

 its surface, numerous small, rounded white spots of about one-twentieth 



Fig. 51.— The white scale, Aspidiot€s nerii, on an acacia twig; a, the male insect; b, the male 

 scale; c, the. female scale — each enlarged. 



of an inch in diameter, having a wrinkled, pale orange center. These 

 are the common '" oleander scale," Aspidiotns nerii Bouche*, which 

 occurs over the whole of the United States and in Europe, and on a great 



