The Oblique-Banded Leafroller: Archips rosaceana Harris1

Abstract

and many others had mentioned the rose as one of the common food plants. In the case under our observation. the pest was received on some Killarney plants imported from an Ohio firm something over a year ago. The larvre evidently increased during the summer of 1908 and by midsummer of 1909 were sufficiently abundant to cause very serious devastation, the loss from defoliation and incidental checking of blooms undoubtedly amounting to over five thousand dollars. }i~ortunately the infestation started in one corner of the house and though when first observed by us both houses were well infested thruout, defoliation was confined to a relatively small area and the slowness of the spread was rather remarkable. When first observed most of the terminals had been folded up by the larvre. Subsequent observations show that where the larvre are not numerous that they are much more common on the lower leaves than on the terminals, this doubtless being due to the fact that the eggs are always laid on the older leaves and never on the terminals. Where plants are badly infested the larvre tie the terminal leaves together in a typicai tortricid fashion, thus checking all growth of the plant, .and burrow into the flower buds, so that there is no possibility of securing blooms (Plate 16). The owner of these houses states that some twenty years ago he was troubled with the same insect in rose houses in Massachusetts, but not so seriously and it was gradually brought under control by handpicking. Upon visiting the Waban Rose Conservatories at Natick, Mass., Mr. Alex. Montgomery, the manager, informed the vvriter that some twenty years ago when hybrid roses were first introduced that they had had considerable trouble with the insect both in the house and on Jacqueminot roses growing out of doors, but that in recent years, though a few were always to be found in old houses, they had found no difficulty in controlling them by handpicking. Mr. Montgomery had just returned from an extensive trip among rose growers thruout the East, but had heard of no noteworthy damage by the insect in recent years, nor do the florists' trade journals give any account of injury, except that Sirrine (1900) mentions it as a carnation pest, where carnations are with or follow roses, implying that it a common rose pest. It is evident, therefore, that serious injury to roses is sporadic as on the apple, and other common food plants.

Longevity of the Adult Codling Moth,Cydia pomonella,and the Obliquebanded Leafroller,Choristoneura rosaceana,in Washington Apple Orchards

“…pomonella. Sanderson and Jackson ( 1909 ) found unfed females had an average longevity of 162 DD (14.6 d), with a maximum longevity of 222 DD (20 d) at a constant 21.1°C. In laboratory studies at 22°C and ≈ 75% RH using the same source colonies of C .…”

“…With C . rosaceana , longevity estimates are even more limited ( Sanderson and Jackson 1909 ; VPJ and NGW unpublished observations). Finally, having the l x curve on a physiological time (degree-day) basis ( Taylor 1981 ) allows the link between models with field conditions to help explain population dynamics at various times during the season.…”

A synthesis of the temperature dependent development rate for the obliquebanded leafroller, Choristoneura rosaceana

“…A survey of the literature was performed to examine the developmental data that was used as the basis for the five phenology models mentioned previously. We used the original data when possible ( Sanderson and Jackson, 1909 ; Gangavalli, 1985 ) or digitized it from graphs in original publications ( Reissig, 1978 ; Omeg, 2001 ). We collected data for the egg, larval, pupal, and egg through pupal stages separately.…”

“…We collected data for the egg, larval, pupal, and egg through pupal stages separately. All temperature studies were on artificial diet, except the studies of Sanderson and Jackson (1909) .…”

Resistance Affects the Field Performance of Insecticides Used for Control of Choristoneura rosaceana in Michigan Apples and Cherries

“…The obliquebanded leafroller, Choristoneura rosaceana (Harris), is an economical pest of apple and cherry [ 1 ]. Even though C. rosaceana has a wide host range, with over 50 species [ 2 ], for a long time it was considered as a minor pest with limited damage in fruit orchards [ 3 ]. However, this perception changed in the late 1970s when outbreaks of C. rosaceana populations occurred and it became a serious pest causing economic damages in fruit orchards [ 4 ].…”