61 



and dry trees. The galleries run irregularly, deep in the core, with 

 a diameter of from f to l^ inches. They are packed with fibres. 

 The pupal chamber measures about 4 inches by If inches and the 

 exit tunnel runs almost horizontally to the side. It has been 

 recorded from India, Burma and Ceylon. 



Another I.ongicorn, Remphmi hopei, has been found in the heart- 

 wood of Dipterocarpus turbinatus. The galleries run transversely and 

 are much deeper than wide, measuring from 2| to 4f inches by | to 

 1 inch. It has a wide distribution, extending from India to Siam 

 and Borneo. Other larvae described include those of : — Acanthophorus 

 serraticornis, 01 iv., or an allied species, in Shorea robusta and Dalbergia 

 sissoo ; Lophonternus hUgeli, Redt., or an allied species, in Querent 

 incana ; and Lagaeus subopacus, Waterh. 



Lloyd (L.). The Glasshouse Tomato Moth and its ConiToX.—MtUy. 



Girc, Lea Valley and Dist. Nurserymen's and Growers' Assoc. Ltd., 

 i, no. 4, December 1919, 10 pp. 



Unless special remedial measures are adopted against the glass- 

 house tomato moth Polia (Hadena) oleracea, the annual loss from 

 this pest in the Lea Valley will amount to from £5 to £10 or more 

 per acre. Early spraying is most essential and should be done just 

 after planting out and repeated about 4 weeks before the first fruit 

 is picked. The plants should be sprayed from above with a solution 

 containing 2 oz. of lead arsenate to 2 gals, of water or 6 lb. to 100 

 gals. Saponin at the rate of a small half-teaspoonful in two gallons 

 or 2 oz. in 100 gals, should be added to the water before the lead 

 arsenate paste to ensure its even distribution. The plants should 

 not be watered again until the day after spraying. Experiments are 

 being carried out with sprays that are non-poisonous to man and may 

 be safely used on older plants. This spraying, although essential, 

 cannot be relied on without subsequent trapping of the caterpillars 

 and moths and destruction of the pupae. The caterpillars may be 

 trapped by means of old sacks loosely folded and placed under the 

 gutters on the pipes or on the lower wires. These sacks should be 

 collected on the 21st day and dipped for half a minute in boiling water 

 after which all dead insects may be shaken out and the sacks replaced. 

 The moths can be trapped by means of preserving jars, which should 

 be fairly deep in proportion to their width, have a pronounced shoulder 

 and a mouth-opening at least 1^ inches across. Each jar should 

 contain an inch of fluid consisting of one part of thick brown treacle 

 to two parts of ale and sodium fluoride 1 per cent. The treacle and 

 ale should be well mixed and the sodium fluoride added to each jar 

 at the rate of as much as can be picked up on a sixpence to 3 oz. of 

 fluid. At least 6 jars should be used for each 200 ft. house and these 

 should be emptied and rebaited at the end of 4 weeks. The traps 

 should be placed in each block as the heat is put into it and should 

 remain in use throughout the year. If possible the houses should 

 be drenched with boiling water before the mulch is removed to destroy 

 the pupae. Boiling water is more effective than carbolic acid for this 

 purpose. Some of the pupae collected from various parts of the house 

 after it has been drenched should be kept in earth for 3 or 4 weeks, 

 and if then found to be still alive, a second drenching will be necessary. 



