INSECT HAPPENIN(JS TN N KW ,J KHSEY IN 1906. 35 



Joutel. It was found that all llie fonus occurrcHl in New Jerse}-. 

 and that we had also yet another which was readily identified 

 as the real iJVuhiOHa of Say, leaving the species heretofore identi- 

 fied as priiinosa without a name. Mr. (irossbeck has projxjsed the 

 name sayi for this form. To make certain just which form Linne 

 intended as tibicen^ the original descriptions and figures were studied, 

 and it seems entirely certain that the original tibicen is a totally dis- 

 tinct species from the one Ave have heretofore determined as such. 

 For the species heretofore known as tibicen the term linnei is pro- 

 posed. 



Perhaps the most interesting feature now in ]:)rogress is the steady 

 increase iji ninnhers of the rose-chafer i^/dcroddcti/li/.'^ mibsphiosuH 

 Fab.). ^Mien I first came into the State, sev^enteen years ago, a 

 scourge was in progress that cidminated in 1890 after a period of 

 gradual rise, and I was told then that some sixteen to twenty years 

 before there had been a similar trouble, followed by a series of j^ears 

 wdien little was seen of the insects. We have had our series of exempt 

 3'ears, and now for the four years last past the beetle has become 

 increasingly abundant. In those same localities wdiere it appeared 

 as a pest sixteen to twenty years ago it is again a pest, but not yet 

 quite as bad as it was in 1890. I anticipate another year of increase 

 before the culmination is reached. As to the cause of the decrease 

 I could find nothing. There were no apparent parasites; but the 

 larvte seemed simply to become less plentiful each year until little 

 was seen of them. As to remedial measures i)ractically no progress 

 has been made. The insects are killed by arsenites, but, especially 

 when they attack grape, the mischief is caused before the poison can 

 do its work; to say nothing of the difficulty of getting a sufficient 

 supply of it on the buds. I am advising our growers for the city 

 market to bag the most valuable varieties and all others that it will 

 pay to protect in that way. Bagging as a protection against rot has 

 been entirely discarded in New Jersey in favor of spraying with the 

 Bordeaux mixture. 



The army worm {IleliopJiilu uiiipiuicta Haw.) has, for the first 

 time in many years, appeared as a pest to field crops in a limited 

 district in southern New Jersey. It was promptly dealt with and 

 did very little harm, but the interesting feature was the practical 

 absence of the tachinid parasites that usually attack so large a per- 

 centage of the caterjnllars. Always on previous occasions I have 

 found an injurious army with the seeds of its own destruction appar- 

 ent, but in this case there was so little infestation that practically 

 all the larv?e collected and placed in breeding cages in the laboratory 

 came to maturity. It will be a matter of very great interest to Avatch 

 developments in southern New Jersey in 1907. In this connection it 

 might be said that some army-worm injury occurs almost every year 



