Forest Insect and Disease Survey; Ontario, 1965 - NFIS

E 20
Black-headed Budworm, Acleris variana Fern.
Little change in the status of this insect occurred in the district in 1965.
Light infestations occurred on white spruce in Gill Township in 1961 and 1962 and
then subsided. In 1965 light infestations were observed on white spruce in Gill,
Way, and Fenton townships. One collection was obtained from black spruce in
Wicksteed Township. Beating mat samples from the remainder of the district revealed
very low population levels.
Pineapple Gall Aphid, Adelges lariciatus Patch
Heavy infestations occurred on white spruce in Way and Fauquier townships and
on black spruce in O'Brien Township. A medium infestation was observed on white
spruce in Gill Township and large numbers of galls in the Kapuskasing-Remi Lake
area gave white spruce trees an unsightly appearance. Light infestations were
observed in the remainder of the district. This represented an increase in numbers
over 1964.
White Flies, Aleyrodidae
An undertermined species of white fly, similar in appearance to the common
greenhouse pest, was collected at two different locations from roadside willow
trees. Nymphs feeding on the underside of the leaves caused a discolouration that
also appeared on the upper leaf surface,
Two small areas of light infestation occurred in Fauquier Township and one
collection was made in Township 138.
Ugly-nest caterpillar, Archips cerasivoranus (Fitch)
A historical review of the ugly-nest caterpillar infestations in the
Kapuskasing District discloses that the last heavy infestation occurred in
1959 1965 a pocket of infestation was observed on eastern choke cherry in Wicksteed
Township where quantitative sampling indicated a population of five nests per
square chain.
Birch Skeletonizer, Bucculatrix canadensisella Chain.
Little change in population levels of this insect occurred at sample stations
compared with 1964. A summary of quantitative sampling at seven locations shows
that the average number of larvae on 175 leaves was 1.9 in 1964 and 1.6 in 1965
(Table 5). However, heavy infestations were found in Fauquier, O'Brien, and
Hansen townships and medium infestations occurred in Wicksteed, Ecclestone, Usnac,
and Opazatika townships. In the remainder of the district infestations were light.