THE MONTHLY BULLETIN. 



33 



Distribution. — Throughout the entire State. 



Food Plants. — Strawberry, orange, rose, lilac, alfalfa, grass, Cali- 

 fornia sage {Artemisia calif ornica) and manzanita. 



Control. — This insect is seldom destructive enough to warrant 

 control, but sometimes this is necessary. The sprat's used for pear 

 thrips (excepting whitewash) are equally effective in controlling this 

 pest. 



THE CITRUS THRIPS. 



Euthrvps citri Moulton. 

 (Fig. 30.) 



General Appearance. — The adult thrips are orange-yellow in color, 

 with the thorax and the second antennal segment orange-brown. They 

 are very minute ; so small as to be scarcely observed by the average 

 orchardist, being less than one thirtieth of an inch in length and one 

 one-hundredth of an inch in width. The presence of this insect is 



Fig. 30. — Citrus tlarips (Enthrips citri Moult.). Pliotomicrograph of adult female. 

 (Plioto by Arizona Agricultural Experiment Station.) 

 3— H 



