Some Typical High Schools Teaching Agriculture 69 



bug, cox-comb gall, measure worm, cicada, grasshopper, katydid, 

 black bug, butterfly, and spiders. Field trip, September 11. To 

 gather insects. Found black moths, mosquitoes, green plant louse, 

 larva of lady-bird beetle, leaf hopper, squash bug, larva of 

 squash-vine borer. Field trip, October 2. To look for insects. 

 Found cottony maple scale, plant louse, ants. Field trip, October 

 7. To look for insects in a corn field. Found caterpillars, corn- 

 stalk borer, green plant lice, ants, corn-root aphis. 



(2) Field trip, September 4. On this trip we also found three 

 species of the old-fashioned potato-bug. It is also known by 

 the name Spanish fly or blister bug. These bugs were working 

 on potato and raspberry vines and grasses. One species was a 

 plain black bug {sic) about three-quarters of an inch long. 

 Another was about the same length, but it was black with a 

 white stripe down the middle of its back and white stripes 

 around its wings. The last one had dark brown stripes running 

 lengthwise on its back. . . . 



(3) On September 9 we went out on the campus and watched 

 some tent caterpillars at work. We found a colony of eight 

 worms on elm leaves. They were black with light stripes on 

 them. There were six or seven clusters of brown hairs on 

 each segment. . . . We found pyramidal galls on some 

 elm leaves but there were no insects in them. They were small 

 and oblong in shape. W^e examined the leaves of an elm tree 

 and found the coxcomb gall. The encasement, which was empty, 

 was dark brown and its upper edge was ragged and rough. 



(4) Field trip, September 13. We then went to a truck patch 

 just across the road from the campus. We examined the stem 

 of the pumpkin and in it we found several squash-vine borers. 

 They are very injurious to the plant and often destroy it en- 

 tirely. They are of a whitish color. One of the passage-ways 

 of the borer was measured and it was found that it had bored 

 over 3 feet, which destroyed the vine. The adult form of the 

 borer is a moth but is not injurious, only that it lays eggs that 

 hatch into one of the great pests of the pumpkin patch. Field 

 trip, October 7. The zoology class went to a corn field north 

 of the campus and examined some of the cornstalks. In them 

 we found small brownish worms, called the cornstalk borer, 

 which is the larva of a moth. In one stalk, we found punctures 

 in every joint, in the first seven joints from the ground, two 

 or three in every joint. We found another small stalk with 

 no ears on it being worked on by the borer. The class thought 

 that the borer was getting ready for the pupa stage, as they 



