102 SCIENTIFIC REPORTS OF THE AGRICULTURAL RESEARCH 



bamboo shoots which were -flying. Experiments under- 

 taken to ascertain whether this fly was the direct cause of 

 the death of the shoots were inconclusive. 



(19) Argyroploce paragramma (Plate XVII, fig. 1). 

 The larvae of this Eucosmid moth were found to be very 

 common at Pusa in July, boring into new bamboo shoots. 

 Generally a great many caterpillars were found in the same 

 shoot boring the stem, completely hidden under the protec- 

 tion of the leaf-sheaths. They seemed to be responsible for 

 the death of a fair percentage of new shoots, 



(20) Nodostoma •■ subcostatnm (Plate XVII, "Eg. 2). This 

 Chrysomelid beetle had been known hitherto as a pest of 

 plantain, nibbling the leaves and fruits. In October, 1917, 

 it was observed to nibble the surfaces of young grape-vine 

 leaves to such an extent as to kill the young leaves. The 

 larvse were found underground amongst grass-roots in 

 July. 



(21) Balaninus c-album (Plate XVIII, fig. 1). This 

 weevil had been reared before from seeds of Eugenia jam- 

 bolana, but little was known about it. This year observa- 

 tions were made to determine its real connection with the 

 fruits. It has only one generation in the year. The adult 

 weevils emerge in May and June, and feed on young green 

 fruits by puncturing them with their snouts. The punc- 

 tured fruits grow and ripen but the punctured spots on 

 them do not grow and appear later on as so many pits in the 

 ripe fruits; this is why the majority of ripe fruits are 

 deformed in shape. The eggs are deposited in the fruits 

 whilst the latter are still on the tree. The weevils appear 

 in enormous numbers and by the time the fruits are ripe 

 practically every seed harbours^ grub. Later on, the grubs, 

 when full-grown, leave the seeds and go into the ground 

 and rest there until the next season. The obvious remedy 

 is thorough destruction of the seeds. 



(22) A white Mite occurred on the tender leaves of jute 

 in the experimental plots of the Imperial Mycologist. 

 The mites fed on the under-surfaces of the leaves which had 

 a lacerated brownish appearance and were somewhat 



