40 Straivberry Culhwe 



is different from above. Its scientific name is jypophorus can- 

 ellus. Mr. Pettit describes the full-grown beetle as "yellowish 

 brown with four black spots upon the wing covers. The pro- 

 thorax and head are colored reddish brown. The beetle is about 

 one-eighth of an inch long. The larva or grub is of about the 

 same size a-nd resembles the common white grub except in size. 

 The adults hibernate under rubbish, appear most numerous in 

 May, lay their eggs, and eat holes in the strawberry leaves until 

 the fruit is picked. The grubs eat the roots. 



This pest resembles and is closely related to Scelodonta pu- 

 bescens, which with two others, is described by Professor Alwood. 

 These three are almost alike in grub form, but do their work at 

 different seasons of the summer. They tunnel in the bark of 

 the roots, not often entering the center. Rotation, and the de- 

 struction of affected plants seem to be the main remedies. 



STRAWBERRY ROOT-LOUSE (Aphis forbesi). This pest is 

 fully described by Prof. B. Dwight Sanderson, in Bulletin No. 

 49 of the Delaware College Station, issued December, 1900. He 

 describes it as an aphid about one-twentieth of an inch long, 

 deep bluish-black in color and somewhat pear-shaped, tapering 

 toward the head. These lice lacerate the roots and suck out the 

 juices to such an extent that the plant withers and dies or is un- 

 able to mature a full crop. "During the winter the small, shiny 

 black aphis eggs may be found thickly clustered upon the stems 

 and along the ribs of the green leaves." They hatch in March 

 and early April. The young lice feed on the leaves at first but 

 soon go down to the tender leaves of the crown. A new brood 

 appears every ten or fifteen days all summer. 



About May first ants become numerous in infested beds, mak- 

 ing nests under the plants and carrying the young aphids down 



