2G9 



bisulphide put in the burrows, which are then closed, do not always 

 destroy all the beetles. The larvae should be destroyed in their 

 natural breeding grounds, or can be trapped by preparing suitable 

 breeding places. 



Bagxall (R. S.). Brief Descriptions of New Thysanoptera. — IX. — 

 Ann. Mag. Nat. Hist., London, 9th Series, i, no. 3, March 1918, 

 pp. 201-221. 



Among the species dealt with are : — Ceratothripoides bnmneus, sp. n., 

 from the Gold Coast, on kola shoots and flowers ; Aptinothrips rufi- 

 cornis var. connaticornis, Uzel, from India, associated in tea flowers with 

 Physothrips lefroyi, Bagn., the former being also common in Europe and 

 North America ; Physothrips pecidiaris, sp. n., from India, on lucerne ; 

 Haplofhrips tenuipennis, sp. n., from India, on tea-bushes ; Podothrips 

 propinquiis, sp. n., and Eurhynchothripis convergens, sp. n., from the 

 Gold Coast, on kola shoots and buds ; and Klinothrips femoralis, sp. n., 

 from the Gold Coast, on foliage of cacao. 



Davey (H. W.). Diseases of Fruit Trees and their Treatment. — Jl. 



Dept. Agric. Victoria, Melbourne, xvi, no. 2, 11th Februar\' 1918, 

 pp. 101-107. [Received 23rd April 1918.] 



In this paper the author deals with the common insect pests of fruit 

 trees in Victoria, including — codling moth [Cydia jwmonella], cherry 

 and pear slug [Eriocampoides liinacina], woolly aphis [Eriosoma 

 lanigerum], peach aphis [Myzus persicae], mussel scale [Lepidosaphes 

 ^dmi\, San Jose scale [Aspidiotiis perniciosus], ohve scale [Saissetia 

 oleae], Rutherglen bug [Nysius vinitor], P}Trhocorid bugs attacking 

 fruit, red spider [Tetranychus telarius] and thrips. The usual insecti- 

 cides are recommended, and formulae and directions for their prepar- 

 ation are given. 



Wheat Storage Problems. Protection from Weevils. — JL Dept. Agric. 

 Victoria. Melbourne, xvi, no. 2, 11th February 1918, pp. 117-119. 

 [Received 23rd April 1918.] 



The special committee appointed by the Commonwealth Advisory 

 Council of Science and Industry, record, in Bull. Xo. 5 of the Council, 

 the result of their investigations on the protection of stored wheat 

 from weevils, and on the treatment of damaged grain. Only two 

 grain weevils {Calandra grarmria and C. oryzae) are destructive enough 

 to require special measures, those recommended being the careful 

 avoidance of old, weevil-infected bags and builcUngs, and the dry storage 

 of sun-dried wheat. Experiments have j^roved that the weevils will 

 not breed in sun-dried wheat which contains only 4*7 of moisture, nor 

 in threshed wheat containing 6.7 per cent. With 8 per cent, of moisture 

 they died in six weeks without breeding, with 9 per cent, they remained 

 dormant, but with anything above this amount, provided they had 

 free air, they became active and increased. Therefore, in a fairly 

 dry cHmate it should be possible to store wheat for an indefinite period 

 without any damage from weevils, provided that it is completely 

 protected from the weather. 



