202 Indian Economic Entomology. [VoL L 



" A summary of the results of the experiments is given helow : — 



(a) That soft varieties of graius such as soft wheats and jowari are sooner 



attacked with weevils than hard varieties, as bansi wheat, bdjri, &c. 



(b) That C.So is a perfect preservative against the attack of weevils upon 



grain. 



(c) The action of C.S- 2 lasts in cases not hermetically closed six weeks, after 



which period a fresh charge of the reagent is requiredt 



(d) That even in samples which have heen attacked with weevils the effect of 



C.S. 2 is immediately felt, the weevils disappearing en masse. 



(e) That C.S. 2 does no harm to grain as regards its colour, smell, and 



cooking properties, &c. 



(f) That the poisonous property of C.S. 2 need in no way interfere with it 



introduction into Indian villages, as, unlike arsenic, its strong and 

 repugnant smell will act as a sufficient safeguard. 



(g) "With the dismantling of the old granary, which had been used as a store- 



house for grain for the last nineteen years, weevils have almost dis- 

 appeared from the farm. After a long and diligent search, I succeeded 

 in observing only a few under the heaps of jowari ears in the threshing 

 yard, so late as the 20th of the last month. This proves beyond 

 doubt that wheat is damaged most by weevils in city godowns, where a 

 large quantity of it is stored every year before being shipped to 

 Europe. 

 (h) It is therefore fair to conclude that painting the interior of the godows with 

 poisonous paints and charging the grain with C.S. 2 (in the proportion of 

 1| ft) of the reagent to a ton of grain) will reduce the damage caused by 

 weevils to wheat and other grains to a considerable extent. . . ." 



From the Deputy Commissioner, Simla District, have been received 

 specimens of diseased grapes, together with a report 

 upon them by the Deputy Conservator of Forests 



of the Bashahr Division. The following is an extract from this 



report : — 



"The first sign of the disease which attracts notice is a white powder-like 

 substance on the skin of the grape occurring in July, and spreading till the whole fruit 

 and peduncle is covered, when some of the grapes and their stems shrivel up. Others 

 more vigorous outgrow this phase (if it is a phase — it may be a distinct disease), but 

 as the colouring and ripening commence, the grape splits, and if examined, grubs are 

 found inside. The splitting commences in July. Additional moisture in the air and 

 unusually heavy rain increase the disease. Increased free circulation of air, and by 

 carrying up the vine above surrounding vegetation, lessen it. Rubbing, syringing 

 with mustard oil and deodar oil, washing with soap and water, sprinkling young buds, 

 flowers and fruit with sulphur when the dew is on them has been tried with no apparent 

 result in decreasing the pest. An autumn pruning resulted the year after in some 

 bunches being untouched, but the pruning was not continued, and in the third year the 

 pest returned with its usual vigour. In other vineyards a partial immunity in some 

 years occurs, notably in dry ones. 



" No eggs have been discovered. There appear to be two kinds of pupa ; two kinds 

 of flies, one black, the other grey ; and one kind of plant-louse. The worm from which 

 the fly in box No. 4 is produced is active and holds on by a hook to parts of plant 

 very tenaciously. The grey powder or mildew cannot be accounted for; it is at first 



