THE GREEN APPLE APHID, APHIS POMI DEGEER (HOMOPTERA: APHIDIDAE), AS PREY OF POLYPHAGOUS ARTHROPOD PREDATORS IN ONTARIO

1990 ◽  
Vol 122 (6) ◽  
pp. 1221-1228 ◽  
Author(s):  
Elmer A.C. Hagley ◽  
W.R. Allen
Keyword(s):  
Apple Tree ◽  
Coccinella Septempunctata ◽  
Forficula Auricularia ◽  
Aphis Pomi ◽  
Arthropod Predators ◽  
Formica Fusca ◽  
Efficacy Index ◽  
Feeding Trials ◽  
Campylomma Verbasci ◽  
Amara Aenea

AbstractIn Ontario several species of polyphagous arthropods consumed nymphs and apterous adults of the green apple aphid, Aphis pomi DeGeer, as determined by serological assays and feeding trials. The most abundant predators on apple tree foliage were the reduviid Acholla multispinosa L., the mirid Campylomma verbasci (Meyer), the coccinellids Coccinella septempunctata L. and Adalia bipunctata L., and coccinellid and chrysopid larvae. An efficacy index developed to assess the effectiveness of foliage-inhabiting predators indicated that those with the greatest potential were Chrysopa larvae and adult C. septempunctata in 1987, and adult C. septempunctata and C. verbasci in 1988. The earwig, Forficula auricularia L., showed potential as a predator of A. pomi in 1989. Of the epigeal arthropods tested, the carabids Amara aenea DeGeer, Bembidion quadrimaculatum oppositum L., and Harpalus aeneus F., and the ants Formica fusca group, Myrmica ameryana Forel, and M. monticola Wheeler were the most active feeders on A. pomi.

scholarly journals Predators and parasitoids of Cacopsylla pyri (L.) (Hemiptera: Psyllidae) in Serbia

2010 ◽  
Vol 25 (1) ◽  
pp. 29-42 ◽  
Author(s):  
Dusanka Jerinic-Prodanovic ◽  
Ljiljana Protic ◽  
Ljubodrag Mihajlovic
Keyword(s):  
Coccinella Septempunctata ◽  
Chrysoperla Carnea ◽  
Parasitoid Species ◽  
Forficula Auricularia ◽  
Predator Species ◽  
Cacopsylla Pyri ◽  
The World ◽  
Anthocoris Nemoralis ◽  
Campylomma Verbasci ◽  
First Time

The presence of C. pyri and its natural enemies was studied in both treated and untreated pear orchards in Serbia from 2005 to 2009. Five parasitoid and 21 predator species were identified as present on a considerable number of sites. The following parasitoid species were found: Prionomitus mitratus (Dalman), Psyllaephagus procerus Marcet, Syrphophagus ariantes (Walker), Syrphophagus taeniatus (F?rster) and Tamarixia sp. In the study, the species Psyllaephagus procerus, Syrphophagus ariantes and Tamarixia sp. were for the first time identified as parasitoids of C. pyri and as new species in the Serbian fauna. Among the parasitoids determined, Prionomitus mitratus predominated. Of the predators, the following species in four orders were registered: Dermaptera [Forficula auricularia Linnaeus (Forficulidae)], Heteroptera [Anthocoris nemoralis (Fabricius), Anthocoris nemorum (Linnaeus), Orius (Heterorius) minutus (Linnaeus), Orius (Heterorius) niger Wolff (Anthocoridae), Campylomma verbasci (Mayer-D?r), Deraeocoris (Deraeocoris) ruber (Linnaeus) and Deraeocoris (Knightocarsus) lutescens (Schilling) (Miridae)], Neuroptera [Chrysopa pallens Rambur, Chrysoperla carnea (Stephens), Chrysopa sp. (Chrysopidae)], and Coleoptera [Coccinella septempunctata Linnaeus, Adalia bipunctata Linnaeus, Adalia decempunctata (Linnaeus), Hippodamia tredecimpunctata (Linnaeus), Hippodamia variegata (Goeze), Propylea quatuordecimpunctata (Linnaeus), Calvia (Anisocalvia) quatuordecimguttata (Linnaeus) (Coccinellidae), Cantharis rustica Fall?n, Rhagonycha fulva (Scopoli) and Rh. testacea (Linnaeus) (Cantharidae)]. Of the predators determined, 12 species were registered for the first time as predators of C. pyri in Serbia, while C. rustica, Rhagonycha fulva and Rh. testacea have so far been known neither in Serbia nor in the world as predators of pear suckers.

Population Development and Insecticide Susceptibility of Apple Aphid and Spirea Aphid (Homoptera: Aphididae) on Apple2

1992 ◽  
Vol 27 (2) ◽  
pp. 113-119 ◽  
Author(s):  
H. W. Hogmire ◽  
M. W. Brown ◽  
J. J. Schmitt ◽  
T. M. Winfield
Keyword(s):  
Apple Tree ◽  
Fold Increase ◽  
Aphid Species ◽  
Insect Control ◽  
Population Development ◽  
Contributing Factors ◽  
Aphis Pomi ◽  
Significant Difference ◽  
Spirea Aphid ◽  
Aphid Populations

Colonies of apple aphid, Aphis pomi DeGeer, and spirea aphid, A. spiraecola Patch, were confined separately in bottle cages on apple tree branches to compare population development and susceptibility to insecticides under field conditions. Spirea aphid populations were significantly larger than apple aphid populations eight days after introduction into bottle cages. After two and a half weeks there was a 24-fold and 40-fold increase in the population of apple aphid and spirea aphid, respectively. Apple aphid was more susceptible than spirea aphid to a low concentration of esfenvalerate and to normal field and 2X field concentrations of azinphosmethyl. There was no significant difference between the two aphid species in susceptibility to methomyl, chlorpyrifos and endosulfan. Mortality of apple aphid to the two phosphate insecticides, azinphosmethyl and chlorpyrifos, was similar; however, spirea aphid was more susceptible to chlorpyrifos than to azinphosmethyl. An increased rate of population development and a greater tolerance of azinphosmethyl, the most widely used insecticide for apple insect control, could be contributing factors in the virtually complete domination of spirea aphid over apple aphid in West Virginia apple orchards.

THE APPLE APHID, APHIS POMI (HOMOPTERA: APHIDIDAE), POPULATION ON APPLE UNDER AUTUMNAL CONDITIONS IN A CONTROLLED ENVIRONMENT CABINET

1970 ◽  
Vol 102 (5) ◽  
pp. 623-627 ◽  
Author(s):  
H. B. Specht
Keyword(s):  
Population Density ◽  
Vegetative Growth ◽  
Apple Tree ◽  
Light Period ◽  
Controlled Environment ◽  
Climatic Effects ◽  
Tree Defoliation ◽  
Egg Deposition ◽  
Aphis Pomi ◽  
Old Trees

AbstractThe apple aphid population density on 1-year-old trees under controlled conditions of decreasing temperatures and photoperiods equivalent to 1 August through 14 November 1967, remained almost static up to the time of apple tree defoliation. Alate forms disappeared and reproduction levelled off after a 13.3 hr, 17 °C light, and a 12 °C dark temperature were programmed. Aphids left the apex of the tree after vegetative growth ceased and became distributed more or less evenly over the older leaves. Egg deposition occurred after the photoperiod became shorter than 11.8/24 hr and temperatures less than 12 °C during the light period, 8 °C during darkness. This "autumn population" of aphids with no external detrimental biotic or extreme climatic effects produced winter eggs equal to one-third its numbers at the time of beginning oviposition.

scholarly journals Arthropod diversity (Arthropoda) on abandoned apple trees

2013 ◽  
Vol 61 (5) ◽  
pp. 1405-1422 ◽  
Author(s):  
Pavla Šťastná ◽  
Václav Psota
Keyword(s):  
Apple Tree ◽  
Cydia Pomonella ◽  
Coccinella Septempunctata ◽  
Apple Trees ◽  
Episyrphus Balteatus ◽  
The Czech Republic ◽  
Critically Endangered Species ◽  
South Moravia ◽  
First Time ◽  
The Village

In 2010 and 2011, the occurrence of arthropods on apple trees without management was monitored near the village of Velké Bílovice, South Moravia, in two selected localities (an abandoned apple tree orchard and a road apple tree alley). Arthropods in tree tops were killed using deltamehtrin applied with a fogger (Puls Fog). Each collection always contained the material from 5 trees in each site. In 2010, three collections were performed (28/4, 20/5, and 9/7), two in 2011 (11/5 and 23/6). Representatives of eleven orders were captured. Of all the orders trapped, Coleoptera was represented most frequently, the Hymenoptera and Diptera followed. In the alley, individuals of the Coleoptera (34%) were caught most frequently, the Hymenoptera (19.6%) and Hemiptera (17.4%) followed. In the orchard, the Coleoptera (41.4%) was represented most frequently, followed by the Hymenoptera (21.9%) and Diptera (15%). In both the environments, species with negative economic impact were recorded (e.g. Anthonomus pyri, Tatianaerhynchites aequatus, Cydia pomonella, Rhynchites bacchus). However, a greater number of pest antagonists were also found (Scambus pomorum, Coccinella septempunctata, Episyrphus balteatus, Pentatoma rufipes, Orius spp.). Some species were important in faunistic terms, as some critically endangered species were recorded (e.g. Dipoena erythropus, Cryptocephalus schaefferi), and the Plectochorus iwatensis species was recorded for the first time in the Czech Republic.

The Apple Tree Borer Remedy

1879 ◽  
Vol 7 (167supp) ◽  
pp. 2651-2651
Keyword(s):  
Apple Tree

Varieties and forms of apple-tree promising for production

2018 ◽  
Vol 14 ◽  
pp. 46-50
Author(s):  
T.V. Bogdanovich ◽  
◽  
E.V. Ulyanovskaya ◽  
Zh.A. Shadrina ◽  
G.A. Kochyan ◽  
...  
Keyword(s):  
Apple Tree
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