61 



There is no particular seasonal brood, though the moths appear to 

 be more numerous from May to August. The larvae also may be found 

 during several months, the length of their existence being very variable, 

 lasting in some cases over 6 months. 



The exact distribution of this species has never been definitely 

 recorded, though it occurs throughout the PhiUppine archipelago and 

 probably also in China. No practical measures, other than cultural 

 methods, are possible for its control, which is chiefly effected by a 

 small Tachinid fly. 



EssiG (E. 0.). A Record of the Corn Earworra attacking Beans and a 

 Suggestion as to the Reason of the Outbreak. — Mthly. Bull. State 

 Commiss. Hortic, Sacramento, vii, no. 9, September 1918, 

 pp. 544-545. [Received 6th December 1918.] 



An unusual attack of the corn ear worm [Heliothis obsokfa] occurred 

 during July in the bean fields of one county in Cahfornia, the cater- 

 pillars becoming abundant very suddenly and injuring the bean pods, 

 especially those of Lima beans, 20-75 per cent, of the first setting 

 being destroyed. Holes were made in the pods, which were usually 

 shed, and in some cases entirely devoured. The caterpillars were of 

 . all stages, and adult moths were quite abundant in the fields, ovipositing 

 on the bean plants, and being most active at night. The first pupae 

 were taken in the soil on 20th July, but many must have been there 

 prior to this, giving rise to a continual emergence of moths from the 

 beginning of July. The use of powders, including neutral lead arsenate 

 and acid powders mixed with hydrated Ume or with kaolin and applied 

 to all parts of the plant with a hand duster, seemed hkely to give good 

 results. The usual formula for poison bran mash for cutworms was 

 used against the larvae with good effect. 



The pest probably originated in a district of 400 acres along the coast 

 devoted to tomato culture, tomatoes being a favourite food-plant. 



Stevens (V. G.). Report of a Recent Investigation for Evidence of 

 Alfalfa Weevil in Alfalfa Fields adjacent to the Salt Lake Railroad. 



— Mthly. Bull. State Commiss. Hortic, Sacramento, vii, no. 9, 

 September 1918, pp. 546-548, 1 fig. [Received 6th December 

 1918.] 



A survey of the lucerne fields adjacent to the Salt Lake Railroad, 

 into which it was feared that the alfalfa weevil [Hypera variabilis] 

 might have been introduced, showed no trace of this pest. 



The insect most abundant in all fields was Colius {Eurymus) eurytheme 

 Boisd. (alfalfa butterfly). 



Armitage (A. H. M.). Some Work of tha Branch Insectary.— M//?7y. 



Bull. State Commiss. Hortic., Sacramento, vii, no. 9, September 

 1918, pp. 548-551. [Received 6th December 1918.] 



During the month of September 1918, 45,125 individuals of 

 Cryptolaemus montrouzieri were liberated on a number of citrus estates, 

 IT^of which were infested with Pseudococcus citri, 10 with P. citrophilus 

 and 2 with P. longispinus. One small shipment of larvae destined 

 for France was dispatched. A strong colony of Leptomustix also was 



