312 



(coconut leaf -miner), has been effectively kept in check during the year 

 by its Chalcid parasite. A Pyralid moth, Harpagoneura complena, was 

 active in several places and was the cause of the destruction of many 

 young nuts. 



Adoretus tenuimaculatus (Japanese rose beetle) considerably damages 

 cacao leaves in newly planted areas. The remedy is to surround the 

 plants with a fence of split bamboo battens about an inch apart. A 

 Scoliid wasp has been introduced from Hawaii to destroy the larvae 

 of this beetle. 



On rubber, a bark-boring beetle was found in two districts, but is 

 not of much importance. Scale -insects were nowhere very abundant. 

 A leaf -miner was found on the leaves, but the damage was not serious ; 

 many larvae found dead within their mines seemed to have been killed 

 by some parasite. 



Phytomyza sp. (leaf-miner) attacked maize in several localities, 

 the larvae eating away the cells immediately beneath the upper 

 epidermis of the leaves in a more or less straight track ; owing 

 to. the unusual scarcity of two Chalcid parasites this pest was able 

 to do considerable damage. 



On Citrus, Chionaspis ciiri (orange snow scale) is present without 

 causing much injury. 



Potatoes were grown on an unusually large scale during the year. 

 An unidentified Lepidopterous larva bored into the stems of full- 

 grown plants, causing the upper portion to wilt. The mature larv^a 

 pupates in the ground near the base of the plant. Epilachna viginti- 

 octopunctata (potato ladybird) was numerous, both larvae and adults 

 feeding on the leaves. If necessary, dusting with Paris green or 

 spraying with lead arsenate will control this C( ccinellid beetle. 



On ornamental plants, a mite, Eriophyes hibisci, has been numerous 

 during the year, and it is suggested that hedges of Hibiscus should be 

 trimmed at a time when the attack of the mites is most pronounced. 



The lantana fly {Agromyza sp.), introduced from Hawaii in 1911, 

 continues to check the increase of this weed. The larva of a butterfly, 

 Anosia sp., feeds upon milk-weed {Asclepias sp.), which is regarded as 

 poisonous to stock. 



LEGISLATION. 



Amendments to the Regulations under the Destructive Insect and Pest 

 Act. — Leaflet from Canada Dept. Agric. Ottawa, Entomological 

 Branch. [Received 24th June 1919.] 



By an Order-in-Council passed 19th May 1919, the importation into 

 Canada is prohibited of all maize fodder or maize stalks, whether used 

 for packing or otherwise, green sweet maize, roasting ears, maize on the 

 cob or maize cobs from certain counties of the States of Massachusetts 

 and New York. This prohibition does not extend to shipments of 

 maize transported through the qi arantined areas on a through bill of 

 lading. To Section 18 of the Act, which contains a list of the de- 

 structive insect pests and diseases, Pyrausta nubikilis, Hbn. (European 

 corn borer) is added. 



