Spruce gall Black & White Stock Photos
![. Elements of zoology, to accompany the field and laboratory study of animals. Zoology. 84 ZOOLOGY ])y binding the leaves together and sucking the sap of the plant or bj' destroj'ing the young seed. The mosquitoes, or Cuhcidffi/ are so well known that it is hardly necessary to describe them. The larvas are aquatic.. Fig. 89. — Plant galls produced by Hcmiptera and Diptera. 1. Pine-apple gall on twigs ot the spruce fir produced by the spruce-gall Aphis {Chenncs ahrctis, one of the Hcmiptera). 2. Covering gall on the petiole of the pyramidal poplar {Popjdus pyramidalis), produced by Pemphigus li Stock Photo](https://c8.alamy.com/comp/RDHRJH/elements-of-zoology-to-accompany-the-field-and-laboratory-study-of-animals-zoology-84-zoology-y-binding-the-leaves-together-and-sucking-the-sap-of-the-plant-or-bj-destrojing-the-young-seed-the-mosquitoes-or-cuhcidffi-are-so-well-known-that-it-is-hardly-necessary-to-describe-them-the-larvas-are-aquatic-fig-89-plant-galls-produced-by-hcmiptera-and-diptera-1-pine-apple-gall-on-twigs-ot-the-spruce-fir-produced-by-the-spruce-gall-aphis-chenncs-ahrctis-one-of-the-hcmiptera-2-covering-gall-on-the-petiole-of-the-pyramidal-poplar-popjdus-pyramidalis-produced-by-pemphigus-li-RDHRJH.jpg ". Elements of zoology, to accompany the field and laboratory study of animals. Zoology. 84 ZOOLOGY ])y binding the leaves together and sucking the sap of the plant or bj' destroj'ing the young seed. The mosquitoes, or Cuhcidffi/ are so well known that it is hardly necessary to describe them. The larvas are aquatic.. Fig. 89. — Plant galls produced by Hcmiptera and Diptera. 1. Pine-apple gall on twigs ot the spruce fir produced by the spruce-gall Aphis {Chenncs ahrctis, one of the Hcmiptera). 2. Covering gall on the petiole of the pyramidal poplar {Popjdus pyramidalis), produced by Pemphigus li Stock Photo")
. Elements of zoology, to accompany the field and laboratory study of animals. Zoology. 84 ZOOLOGY ])y binding the leaves together and sucking the sap of the plant or bj' destroj'ing the young seed. The mosquitoes, or Cuhcidffi/ are so well known that it is hardly necessary to describe them. The larvas are aquatic.. Fig. 89. — Plant galls produced by Hcmiptera and Diptera. 1. Pine-apple gall on twigs ot the spruce fir produced by the spruce-gall Aphis {Chenncs ahrctis, one of the Hcmiptera). 2. Covering gall on the petiole of the pyramidal poplar {Popjdus pyramidalis), produced by Pemphigus li Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/elements-of-zoology-to-accompany-the-field-and-laboratory-study-of-animals-zoology-84-zoology-y-binding-the-leaves-together-and-sucking-the-sap-of-the-plant-or-bj-destrojing-the-young-seed-the-mosquitoes-or-cuhcidffi-are-so-well-known-that-it-is-hardly-necessary-to-describe-them-the-larvas-are-aquatic-fig-89-plant-galls-produced-by-hcmiptera-and-diptera-1-pine-apple-gall-on-twigs-ot-the-spruce-fir-produced-by-the-spruce-gall-aphis-chenncs-ahrctis-one-of-the-hcmiptera-2-covering-gall-on-the-petiole-of-the-pyramidal-poplar-popjdus-pyramidalis-produced-by-pemphigus-li-image232117049.htmlRMRDHRJH–. Elements of zoology, to accompany the field and laboratory study of animals. Zoology. 84 ZOOLOGY ])y binding the leaves together and sucking the sap of the plant or bj' destroj'ing the young seed. The mosquitoes, or Cuhcidffi/ are so well known that it is hardly necessary to describe them. The larvas are aquatic.. Fig. 89. — Plant galls produced by Hcmiptera and Diptera. 1. Pine-apple gall on twigs ot the spruce fir produced by the spruce-gall Aphis {Chenncs ahrctis, one of the Hcmiptera). 2. Covering gall on the petiole of the pyramidal poplar {Popjdus pyramidalis), produced by Pemphigus li
![. Forest insect conditions in British Columbia [microform] : a preliminary survey. Insect pests; Arbres; Forest insects; Insectes nuisibles; Insectes forestiers; Trees. 11 Throughout the Okanagan and Similkameen many bull pines are stag- headed. All such cases examined had been caused by bark-boring caterpillars destroying the inner bark in patches about the trunk and bases of the branches, working downwards from the top. These dead tops were covered with resin, and perfectly sound.. Fig. 1—Galls ot the Sitka .'Spruce Gall Aphm, on Sitka Spiucc: Stanley Park, Vancouvtr. (Original ^ The cones o Stock Photo](https://c8.alamy.com/comp/RENF6R/forest-insect-conditions-in-british-columbia-microform-a-preliminary-survey-insect-pests-arbres-forest-insects-insectes-nuisibles-insectes-forestiers-trees-11-throughout-the-okanagan-and-similkameen-many-bull-pines-are-stag-headed-all-such-cases-examined-had-been-caused-by-bark-boring-caterpillars-destroying-the-inner-bark-in-patches-about-the-trunk-and-bases-of-the-branches-working-downwards-from-the-top-these-dead-tops-were-covered-with-resin-and-perfectly-sound-fig-1galls-ot-the-sitka-spruce-gall-aphm-on-sitka-spiucc-stanley-park-vancouvtr-original-the-cones-o-RENF6R.jpg ". Forest insect conditions in British Columbia [microform] : a preliminary survey. Insect pests; Arbres; Forest insects; Insectes nuisibles; Insectes forestiers; Trees. 11 Throughout the Okanagan and Similkameen many bull pines are stag- headed. All such cases examined had been caused by bark-boring caterpillars destroying the inner bark in patches about the trunk and bases of the branches, working downwards from the top. These dead tops were covered with resin, and perfectly sound.. Fig. 1—Galls ot the Sitka .'Spruce Gall Aphm, on Sitka Spiucc: Stanley Park, Vancouvtr. (Original ^ The cones o Stock Photo")
. Forest insect conditions in British Columbia [microform] : a preliminary survey. Insect pests; Arbres; Forest insects; Insectes nuisibles; Insectes forestiers; Trees. 11 Throughout the Okanagan and Similkameen many bull pines are stag- headed. All such cases examined had been caused by bark-boring caterpillars destroying the inner bark in patches about the trunk and bases of the branches, working downwards from the top. These dead tops were covered with resin, and perfectly sound.. Fig. 1—Galls ot the Sitka .'Spruce Gall Aphm, on Sitka Spiucc: Stanley Park, Vancouvtr. (Original ^ The cones o Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/forest-insect-conditions-in-british-columbia-microform-a-preliminary-survey-insect-pests-arbres-forest-insects-insectes-nuisibles-insectes-forestiers-trees-11-throughout-the-okanagan-and-similkameen-many-bull-pines-are-stag-headed-all-such-cases-examined-had-been-caused-by-bark-boring-caterpillars-destroying-the-inner-bark-in-patches-about-the-trunk-and-bases-of-the-branches-working-downwards-from-the-top-these-dead-tops-were-covered-with-resin-and-perfectly-sound-fig-1galls-ot-the-sitka-spruce-gall-aphm-on-sitka-spiucc-stanley-park-vancouvtr-original-the-cones-o-image232812911.htmlRMRENF6R–. Forest insect conditions in British Columbia [microform] : a preliminary survey. Insect pests; Arbres; Forest insects; Insectes nuisibles; Insectes forestiers; Trees. 11 Throughout the Okanagan and Similkameen many bull pines are stag- headed. All such cases examined had been caused by bark-boring caterpillars destroying the inner bark in patches about the trunk and bases of the branches, working downwards from the top. These dead tops were covered with resin, and perfectly sound.. Fig. 1—Galls ot the Sitka .'Spruce Gall Aphm, on Sitka Spiucc: Stanley Park, Vancouvtr. (Original ^ The cones o
