508 



Holder (C. H.). Report of the Fruit Experiment Station, Shillong, 

 for nine Months ending the 31st March 1919. — Rep. Agric. 

 Expts. & Demonstrations in Assam for nine Months ended the 

 31st March 1919, Shillong, 1919, pp. 45-73. 



Cockchafer grubs were very numerous in light soil, necessitating 

 its removal in the immediate neighbourhood of fruit trees. Thousands 

 of beetles were caught by means of light-traps in May and June. 

 Injury to apples is attributed to the larva of a weevil which eats 

 small patches in the fruit and oviposits in excavations along the edges 

 of such patches. Calyx spraying with lead arsenate solution was 

 carried out, but it is uncertain whether this will prove successful against 

 this pest. A brown weevil is also reported attacking apple shoots 

 and another species is very destructive to fig trees. 



DEN Doop (J. E. A.). Levensgeschiedenis van Epilachna dodecastigma, 

 Mulsant, in Deli. [The Life-History of E. dodecastigma in Deh.] — 

 Teysmannia, Batavia, xxx, no. 6, 1919, pp. 243-253, 1 plate. 



The CoccinelHd beetle, Epilachna dodecastigma, Muls., occurs in 

 Deli, Sumatra, on Datura fastuosa and Physalis minima. Jn 

 captivity it feeds on potato leaves. In DeU it may be counted among 

 the beneficial insects, for P. minima is a weed in tobacco plantations, 

 its fruits being the preferred food (next to tobacco) of Heliothis 

 obsoleta, F., one of the two most dangerous pests of tobacco. In 

 the laboratory about 70 per cent, of the eggs hatched out. The 

 egg-stage lasted 4-5 days, the larval stage 14-19 days, and the 

 pupal stage 4-5 days. The complete life-cycle, from oviposition 

 to emergence of the adult, occupied 24 days on an average. The 

 adults are parasitised by Acarines and there is a Chalcid egg-parasite 

 larger in size and fighter in colour than the species of Trichogramma 

 infesting H. obsoleta, in the eggs of which it could not be bred. The 

 incubation period of this parasite is about 10 days. 



Feytaud (J.).^~ Action de la Chaleur et de la S6cheresse sur la 

 Cochylis. — Jl. Agric. Pratique, Paris, xxxii, no. 34, 25th September 

 1919, pp. 690-692, 1 fig. ■ 



Observations on Clysia {Cochylis) ambiguella, Hb., during the 

 last ten years show that this moth is greatly influenced by atmospheric 

 conditions. Details are given of the weather conditions and the 

 counts made for each year. Hot, dry weather kills aU the stages 

 of this moth. 



Lees (A. H.). Two Pests of the Rose. — Gardeners' Chronicle, London, 

 Ixvi, no. 1707, 13th September 1919, p. 139, 1 fig. 



The rose-leaf miner, Nepticula anomalella, has two generations a 

 year. The larvae are found in July, September and October, the 

 adult Tineids appearing in May and August. The infested leaves 

 should be removed and destroyed or else the larvae crushed in their 

 galleries, thus allowing the leaves to continue their function. 



A description is also given of Tortrix hergmanniana, which is found 

 all over the United Kingdom, but chiefly in the south. The larvae,. 



