^ EXPERIMENT STATION REPORT. 559 



things so considerately that in sheer gratitude the insects may 

 have survived for him and no one else. 



Shade tree insects attracted attention because of an unusual 

 development of the Cottony Mapl6 Scale, which, how^ever, v^as 

 largely limited to cities near the Atlantic coast. Climatic or other 

 causes not entomological had severely affected many maple and 

 some other trees in Newark, Montclair and the Oranges and the 

 officers in charge and residents became concerned in consequence, 

 tending to charge all things to insects and demanding of the 

 entomologist a cure for all ills. A consideration of the Cottony 

 Scale will be found on another page. 



Hardly had the fear of the one scale subsided, when the Pseu- 

 dococcus aceris made its appearance on the trunks and branches 

 causing further inquiry. But this did not become especially 

 abundant and was very local in its manifestations. 



The Vaporer Moth was also locally abundant ; but was limited 

 even in the cities in which it appeared. Thus, in Newark, only a 

 few streets in certain sections of the city showed any sort of in-- 

 festation. In the surrounding towns the insect was almost 

 entirely absent. 



The elm-leaf beetle was so little in evidence that no spraying 

 was done on the College elms and there was little evidence of the 

 work anywhere in New Brunswick. So in Newark, Elizabeth and 

 the smaller surrounding cities and towns there was not enough to 

 attract especial attention. On the whole, elms have not looked so 

 well in years and the brood that came to maturity in mid-summer 

 was the smallest I have known for some seasons. Nevertheless 

 there is a brood in hibernation and, while not a very large one, it 

 is of sufficient extent to cause trouble next year (1905) should 

 climatic and other conditions be favorable. 



Cabbage zvonns became locally abundant during the latter part 

 of the season; but were not nearly so bad as they have been in 

 some years past. Nevertheless considerable injury was done and 

 the demand for information as to methods of treatment was heavy 

 for a time. 



Onion maggots were more widely distributed and more gen- 

 erally complained of than in any previous year. There had been 

 local outbreaks of a severe character, and in some places growers 

 have to deal with more or less of the insects each year ; but never 

 before were they so generally abundant and injurious. Root mag- 

 gots are difficult tilings to deal with at best because they are be- 

 yond the reach of ordinary insecticide applications. On light land 

 the quick-acting fertilizers were advised with general good sue- 



