A Note on The Quetta Borer (Aeolesthes Sartus)

The time of pupation of the larva will vary by a week or so depending upon the climatic conditions ; but the end of the month of May and during June may be taken as the period during which the greater bulk of the grubs in the trees change into the chrysalis or pupa state. [...] If the exudation below the holes is dry and old looking an examination of them will disclose in the autumn the pupa in the pupal chamber in the interior of the wood in the winter about January or February the fully-formed but still soft beetle in the same position and about the beginning of April the fully formed beetle commencing to or engaged in making its way through the layer of wood and bar [...] (a) The Civil Station.—As far as the planting and management of the trees are concerned the civil station may be divided into two areas the first of which is under the Superintendent of Arboriculture and outside municipal limits the second under the Secretary to the Municipality. [...] Within the last year or so the gravity of the position has been forced upon the inhabitants owing to the ever-increasing numbers of dead and dying trees in the avenues and compounds and the all too obvious increase in the numbers of the pest. [...] during the egg-laying period is a direct benefit to the insect and it is in the lopping of the trees in Quetta that one of the causes for the present numbers of the beetle must be sought.