294 



Chionaspis sp. on wistaria ; Aspidiotus sp. on flowering cherry ; 

 Pseudaonidin paeoniae on peonies. From Nevada : Heterodera 

 radicicola in potatoes. From Central America : Aspidiotus cyanophylli 

 on bananas. From Mexico : Weevils in larval and pupal stages in 

 acorns ; larvae of Helioihis [Chloridea) obsoleta in tomatoes. From 

 Oregon : Rhizoctonia on potatoes. From Texas : Parlatoria per- 

 gandei on grapefruit. From Washington : Heterodera radicicola and 

 Rhizoctotiia on potatoes. 



The Orchard. Experiments in Connection with the Destruction of 

 Insect Pests of the Tomato. — Queensland Agric. Jl., Brisbane, ix, 

 no. 2, February 1918, pp. 64-67. [Received 10th May 1918.] 



Experiments in controlling the tomato moth [HeUothis obsoleta] 

 proved lead arsenate to be the most satisfactory msecticide for the 

 purpose. An ordinary kerqsene hurricane lamp, set on a tin tray 

 and mounted on an empty fruit-case, as described and illustrated 

 in this paper, was most efficacious as a trap-lantern. 



Illingworth (J. F.) & Jarvis (E.). Cane Grub Investigation. — 

 Queensland Agric. JL, Brisbane, ix, no. 2, February 1918, pp. 72- 

 73. [Received 10th May 1918.] 



It is stated that in the Meringa region Lepidiota frenchi and L. rollii 

 are much more in evidence than the commoner cane beetle, L. albohirta. 

 These two smaller species emerge in early December and are found 

 abundantly on their feeding trees and on low shrubs, fences, grass, etc. 

 They emerge earlier in the evening than the greyback beetles and are 

 easily collected by hand. Although the occurrence of L. frenchi is 

 really biennial, small local emergences are generally noticed each 

 season, when the larvae do great damage to both ratoon and young 

 plant cane. Gn 5th November several individuals of Anomala austra- 

 lasiae were confined in cages and a week later a number of eggs had 

 been deposited that hatched on the 22nd. It is intended to work 

 out the life-history of this Rutelid and of other species affecting cane 

 that have not hitherto been recorded. 



The indigenous parasites of root-eating cane beetles are being 

 investigated. Male wasps of Campsomeris radula are now emerging 

 from pupae derived from eggs of this species on grubs of Lepidiota 

 frenchi. In experimenting with light-traps, it was desired so to 

 simplify them that they might come into common use in cane-growing 

 regions. A very successful type consists of a large pan, about a yard 

 square, with sides about 4 inches high, the hght being furnished by 

 an ordinary acetylene lamp. A sheet of glass, 9 in. by 2 feet, attached 

 to the stem of the lamp with a string, is found to give excellent results 

 in heading off the beetles that circle about the flame, landing them 

 in a tray of kerosene-coated water. It is found best to place the 

 pan on the ground, so that the beetles cannot fly beneath it instead 

 of into the trap. The best time to catch L. albohirta and L. frenchi 

 is just at dark before the beetles reach the feeding trees, though 

 L. rothi continues to enter the trap throughout the night. 



