Aphis pomi (Hemiptera: Aphididae) Population Development, Shoot Characteristics, and Antibiosis Resistance in Different Apple Genotypes

2008 ◽  
Vol 101 (4) ◽  
pp. 1341-1348 ◽  
Author(s):  
Sibylle Stoeckli ◽  
Karsten Mody ◽  
Silvia Dorn
Keyword(s):  
Population Development ◽  
Aphis Pomi ◽  
Antibiosis Resistance

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.

RELEASE OF CHRYSOPERLA CARNEA STEPHENS (NEUROPTERA: CHRYSOPIDAE) FOR CONTROL OF THE GREEN APPLE APHID, APHIS POMI DEGEER (HOMOPTERA: APHIDIDAE)

1989 ◽  
Vol 121 (4-5) ◽  
pp. 309-314 ◽  
Author(s):  
Elmer A.C. Hagley
Keyword(s):  
Daily Temperature ◽  
Chrysoperla Carnea ◽  
Apple Trees ◽  
Aphis Pomi ◽  
The Mean

AbstractRelease of the chrysopid, Chrysoperla cornea Stephens, at a rate of ca. 335 000 eggs per hectare, reduced significantly the numbers of apterous adults and nymphs of the green apple aphid, Aphis pomi DeGeer, on dwarf apple trees. Greater reduction in aphid numbers occurred in 1984 than in 1985, and the efficiency of the predator might have been influenced by the predator:prey ratios (1:10 and 1:19) used and by the mean daily temperature that occurred during the test periods. Application of azinphosmethyl (Guthion 50% wp, 0.105 and 0.075 kg AI/100 L) did not adversely affect predation of apterous A. pomi by larvae of C. carnea.

scholarly journals Is High Whitefly Abundance on Cassava in Sub-Saharan Africa Driven by Biological Traits of a Specific, Cryptic Bemisia tabaci Species?

Insects ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 260
Author(s):  
Habibu Mugerwa ◽  
Peter Sseruwagi ◽  
John Colvin ◽  
Susan Seal
Keyword(s):  
Food Security ◽  
Bemisia Tabaci ◽  
Development Time ◽  
Adult Emergence ◽  
Sub Saharan Africa ◽  
Biological Traits ◽  
Population Development ◽  
Species Classification ◽  
First Instar ◽  
Sub Saharan

In East Africa, the prevalent Bemisia tabaci whiteflies on the food security crop cassava are classified as sub-Saharan Africa (SSA) species. Economically damaging cassava whitefly populations were associated with the SSA2 species in the 1990s, but more recently, it has been to SSA1 species. To investigate whether biological traits (number of first instar nymphs, emerged adults, proportion of females in progeny and development time) of the cassava whitefly species are significant drivers of the observed field abundance, our study determined the development of SSA1 sub-group (SG) 1 (5 populations), SG2 (5 populations), SG3 (1 population) and SSA2 (1 population) on cassava and eggplant under laboratory conditions. SSA1-(SG1-SG2) and SSA2 populations’ development traits were similar. Regardless of the host plant, SSA1-SG2 populations had the highest number of first instar nymphs (60.6 ± 3.4) and emerged adults (50.9 ± 3.6), followed by SSA1-SG1 (55.5 ± 3.2 and 44.6 ± 3.3), SSA2 (45.8 ± 5.7 and 32.6 ± 5.1) and the lowest were SSA1-SG3 (34.2 ± 6.1 and 32.0 ± 7.1) populations. SSA1-SG3 population had the shortest egg–adult emergence development time (26.7 days), followed by SSA1-SG1 (29.1 days), SSA1-SG2 (29.6 days) and SSA2 (32.2 days). Regardless of the whitefly population, development time was significantly shorter on eggplant (25.1 ± 0.9 days) than cassava (34.6 ± 1.0 days). These results support that SSA1-(SG1-SG2) and SSA2 B. tabaci can become highly abundant on cassava, with their species classification alone not correlating with observed abundance and prevalence.

Spring population development of cereal aphids on durum wheat in Lleida, NE of Spain

1989 ◽  
Vol 107 (1-5) ◽  
pp. 203-210 ◽  
Author(s):  
X. Pons ◽  
R. Albajes ◽  
J. Avilla ◽  
M. J. Sarasúa ◽  
M. Artigues ◽  
...  
Keyword(s):  
Durum Wheat ◽  
Cereal Aphids ◽  
Population Development

Population development of the invader ctenophore Mnemiopsis leidyi , in the Black Sea and in other seas of the Mediterranean basin

2001 ◽  
Vol 139 (3) ◽  
pp. 431-445 ◽  
Author(s):  
Shiganova T. ◽  
Mirzoyan Z. ◽  
Studenikina E. ◽  
Volovik S. ◽  
Siokou-Frangou I. ◽  
...  
Keyword(s):  
Black Sea ◽  
Mediterranean Basin ◽  
The Black Sea ◽  
Mnemiopsis Leidyi ◽  
Population Development ◽  
The Mediterranean ◽  
The Mediterranean Basin

scholarly journals Inheritance of Antibiosis Resistance to the Dectes Stem Borer, Dectes texanus, in Soybean PI165673

Agronomy ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 738
Author(s):  
Lina M. Aguirre-Rojas ◽  
Lawrent L. Buschman ◽  
Brian McCornack ◽  
William T. Schapaugh ◽  
Erin D. Scully ◽  
...  
Keyword(s):  
North America ◽  
Larval Stage ◽  
Stem Borer ◽  
Plant Introduction ◽  
Lower Number ◽  
Soybean Plant ◽  
Yield Losses ◽  
First Instar ◽  
Significant Yield ◽  
Antibiosis Resistance

Dectes texanus larvae girdles the stems of soybean and cultivated sunflowers causing significant yield losses in North America. The soybean Plant Introduction (PI) 165673 exhibits antibiosis resistance to the larval stage. The objectives of this study were: (1) to determine the inheritance of D. texanus resistance in PI165673; (2) evaluate PI165673 antibiosis resistance before 21 d post infestation; (3) evaluate girdling damage in PI16563 at the end of the season. K07-1544/PI165673 F2 and F2:3 populations were tested for resistance to D. texanus in 2011 and 2012, and PI165673 antibiosis resistance and girdling damage were evaluated in 2014. Segregation for resistance to D. texanus and heritability estimates in the F2 and F2:3 populations indicated that resistance was controlled by two genes with dominant and recessive epistasis. Antibiosis evaluations indicated: (1) PI165673 contained lower number of larvae and eggs relative to the number of oviposition punctures at 15 d post infestation; (2) the proportion of first-instar larvae was higher in PI165673 at 15 d post infestation; (3) larvae reach the sixth-instar stage in PI165673. None of the PI165673 plants were girdled at the end of the season. Identification of additional sources of D. texanus resistance is required to impair larval development in the stem.

Aphis pomi. [Distribution map].

1969 ◽  
Author(s):  
Keyword(s):  
North America ◽  
Geographical Distribution ◽  
Host Plants ◽  
Distribution Map ◽  
Aphis Pomi ◽  
New Distribution ◽  
Distribution In Europe

Abstract A new distribution map is provided for Aphis pomi Deg. (Hemipt., Aphididae) (Green Apple Aphis). Host Plants: Apple, also pear, quince, Crataegus, etc. Information is given on the geographical distribution in EUROPE (excl. USSR), Austria, Belgium, Britain, Bulgaria, Czechoslovakia, Denmark, Finland, France, Germany, Hungary, Ireland, Italy, Malta, Netherlands, Norway, Poland, Portugal, Rumania, Sardinia, Spain, Sweden, Switzerland, Yugoslavia, ASIA, Afghanistan, Cyprus, Iran, Iraq, Israel, Lebanon, Pakistan, Syria, Turkey, USSR, AFRICA, Libya, Madeira, Tunisia, NORTH AMERICA, Canada, U.S.A.

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