Susceptibility of nine apple cultivars to woolly apple aphid,Eriosoma lanigerum(Homoptera: Aphididae) in Jordan

2009 ◽  
Vol 55 (1) ◽  
pp. 79-84
Author(s):  
Mazen A. Ateyyat ◽  
Tawfiq M. Al-Antary
Keyword(s):  
Eriosoma Lanigerum ◽  
Woolly Apple Aphid ◽  
Apple Cultivars

scholarly journals Resistance performance of four principal apple cultivars to woolly apple aphid, Eriosoma lanigerum (Hemiptera: Pemphigidae), by simulated seasonal temperature in northern China

2021 ◽  
Vol 15 (1) ◽  
pp. 59-69
Author(s):  
Xiu-Mei Tan ◽  
Zhuo-Shi Yang ◽  
Hao Zhou ◽  
Qin-Min Yang ◽  
Hong-Xu Zhou
Keyword(s):  
Growth Rate ◽  
Durable Resistance ◽  
Resistance Mechanism ◽  
Northern China ◽  
Reproductive Rate ◽  
Seasonal Temperature ◽  
Eriosoma Lanigerum ◽  
Net Reproductive Rate ◽  
Woolly Apple Aphid ◽  
Apple Cultivars

AbstractWoolly apple aphid (WAA), Eriosoma lanigerum (Hausmann) (Hemiptera: Pemphigidae), is a worldwide quarantine pest of apples. Understanding the resistance mechanism of various cultivars to WAA is important for the selection for durable resistance. Few studies have examined the resistance of different apple cultivars to WAA in China; among common varieties produced in China, Red Fuji is highly sensitive to WAA. In this study, the resistance to WAA of Red Fuji and three other common cultivars—Starkrimson, Jonagold, and Ralls Genet—was assessed based on the developmental and reproductive biological characteristics of aphids, assessed under four fixed temperatures: 20, 25, 30, and 35 ℃. We found the optimal temperature for WAA growth and reproduction to be 20–25 ℃, at which temperature, aphids on Red Fuji showed the highest rate of reproduction, the highest number of colonies, and the greatest area covered by aphid colonies among the four cultivars. These attributes of WAA were significantly higher at 20–25 ℃ than at 30 ℃. On Red Fuji, the most favorable variety, WAA showed its highest net reproductive rate (127.3 ± 13.3), intrinsic growth rate (0.30 ± 0.01), highest growth rate of the colony area (1.35 ± 0.02), and the lowest average generation time (16.1 ± 0.8 day) at 25 ℃. The aphids inoculated onto the four tested cultivars all died within 1 week at 35 ℃. Overall, Red Fuji was highly susceptible, while Starkrimson, Jonagold, and Ralls Genet were partially resistant.

Comparative Analysis of Stylet Penetration Behaviors of Eriosoma lanigerum (Hemiptera: Aphididae) on Main Apple Cultivars in China

2020 ◽  
Vol 113 (4) ◽  
pp. 1761-1767 ◽  
Author(s):  
Zhou Hao ◽  
Du Lingjun ◽  
Wan Fang-Hao ◽  
Zhou Hongxu
Keyword(s):  
Total Duration ◽  
Fourth Instar ◽  
Electrical Penetration Graph ◽  
Eriosoma Lanigerum ◽  
Woolly Apple Aphid ◽  
Sieve Cells ◽  
Behavioral Mechanism ◽  
Epg Technique ◽  
Apple Cultivars ◽  
Phloem Feeding

Abstract The preference and behavioral mechanism of the feeding behavior of the woolly apple aphid, Eriosoma lanigerum (Hausmann), on Chinese apple cultivars was investigated using the electrical penetration graph (EPG) technique. Feeding of adult aphids was assessed for the four main cultivars of apple in China (Red Fuji, Ralls Genet, Starkrimson, and Jonagold) over an 8-h monitoring period, what that of fourth-instar nymphs was assessed for 8 h on Jonagold only. EPG waveforms representing the details of probing behaviors, parameters were measured for analysis. We found that at the nonphloem phase, the total duration of the nonpenetration (np) waveform and the total duration of the stylet pathway phase (the ‘C wave’) on Ralls Genet and Starkrimson were significantly longer than on Red Fuji. In addition, the phloem-feeding phase, the total duration of ‘release of saliva into the phloem’, (the E1 waveform) was significantly longer on Ralls Genet and Jonagold than on Red Fuji. The total duration of the ‘ingestion from sieve cells’ phase (the E2 waveform) on Red Fuji, meanwhile, was significantly longer than on Ralls Genet or Starkrimson. At the same time, when combined with EPG parameters, Red Fuji was found to have no obvious resistance to woolly apple aphid and to be a susceptible cultivar. This experiment also recorded the feeding waveform of fourth-instar aphid nymphs. Based on the phloem and nonphloem parameters recorded in this study, it was inferred that adult aphids are more likely than nymphs to feed on apple trees.

SOME ASPECTS OF A RYANIA-GLYODIN SPRAY SCHEDULE IN BRITISH COLUMBIA APPLE ORCHARDS: I. ENTOMOLOGICAL, HORTICULTURAL, AND ECONOMIC ASPECTS

1957 ◽  
Vol 37 (4) ◽  
pp. 423-433 ◽  
Author(s):  
C. V. G. Morgan ◽  
N. H. Anderson
Keyword(s):  
Detrimental Effect ◽  
Codling Moth ◽  
Economic Aspects ◽  
Apple Orchards ◽  
Predacious Mites ◽  
Eriosoma Lanigerum ◽  
Woolly Apple Aphid ◽  
Aphis Pomi ◽  
Lime Sulphur ◽  
Modified Schedule

In apple orchards at Summerland, B.C., four applications of 100 per cent ryania at 48 lb. per acre per application, with glyodin as the fungicide, gave control of light infestations of the codling moth, Carpocapsa pomonella (L.), similar to that from four sprays of 50 per cent DDT at 12 lb. per acre, with lime-sulphur, ferbam, and wettable sulphur. In a heavily-infested orchard, ryania was inferior to DDT. The ryania-glyodin schedule also controlled the woolly apple aphid, Eriosoma lanigerum (Hausm.), and the apple aphid, Aphis pomi DeG. It had little detrimental effect on predacious mites. Except for the apple rust mite, Vasates schlechtendali (Nal.), phytophagous mites were usually not so troublesome where the modified schedule was used.Packing-house records showed that the ryania-glyodin schedule reduced the size and lowered the grade of McIntosh, Newtown, and Delicious apples, and reduced the size of Red Delicious. Grade of Red Delicious was better with the modified than with the standard schedule. The 1954 applications of the modified schedule evidently reduced the size of the 1955 crops on all varieties; most seriously affected were McIntosh with 76.2 per cent reduction and Delicious with 53.7 per cent.

Some Notes on the Dipterous Enemies of Aphids Harmful for Apple Growing in Nova Scotia

1961 ◽  
Vol 93 (11) ◽  
pp. 1020-1021 ◽  
Author(s):  
H. H. Evenhuis
Keyword(s):  
Nova Scotia ◽  
Phosphorus Compounds ◽  
Research Station ◽  
Department Of Agriculture ◽  
Eriosoma Lanigerum ◽  
Woolly Apple Aphid ◽  
Aphis Pomi ◽  
Dysaphis Plantaginea ◽  
Annapolis Valley ◽  
Made In

During a stay at the Research Station, Canada Department of Agriculture at Kentville, Nova Scotia, from July 3 to October 16, 1959, I had the opportunity to make some observations on the natural enemies of the woolly apple aphid, Eriosoma lanigerum (Hausm.), the rosy apple aphid, Dysaphis plantaginea (Pass.), and the green apple aplud, Aphis pomi Deg. An inventory of these enemies was made in the Annapolis Valley in apple orchards. sprayed according to the principles of the spray schedule of Dr. A. D. Pickett. This schedule avoids spraying with fungicides and insecticides such as sulphur and phosphorus compounds, which are very harmful to the enemies of a number of pests, studied by Dr. Picktett and his staff (cf. Pickett 1959). The dipterous predators and their enemies are dealt with in this paper.

TOWARDS IMPROVED CONTROL OF WOOLLY APPLE APHID (ERIOSOMA LANIGERUM) IN INTEGRATED FRUIT PRODUCTION

2011 ◽  
pp. 15-22 ◽  
Author(s):  
T. Beliën ◽  
E. Bangels ◽  
G. Peusens ◽  
D. Goossens ◽  
N. Berkvens ◽  
...  
Keyword(s):  
Fruit Production ◽  
Eriosoma Lanigerum ◽  
Woolly Apple Aphid ◽  
Integrated Fruit Production

Laboratory comparison of twoAphelinus maliclades for control of woolly apple aphid from Hebei Province, China

2017 ◽  
Vol 108 (3) ◽  
pp. 400-405
Author(s):  
M. Su ◽  
X. Tan ◽  
Q. Yang ◽  
C. Zhao ◽  
F. Wan ◽  
...  
Keyword(s):  
Shandong Province ◽  
Hebei Province ◽  
Threshold Temperature ◽  
Host Searching ◽  
Eriosoma Lanigerum ◽  
Developmental Threshold ◽  
Woolly Apple Aphid ◽  
Effective Accumulated Temperature ◽  
Aphelinus Mali ◽  
Accumulated Temperature

AbstractAphelinus mali(Haldeman) is an effective natural enemy of woolly apple aphid (WAA),Eriosoma lanigerum(Hausmann). Previous studies have found that, with WAA from Shandong Province (Qingdao) as the host, there are significant differences in various biological characteristics between a Shandong clade and Liaoning clade ofA. mali. The ability of the Shandong clade to control this aphid was significantly higher than that of the Liaoning clade in Shandong Province. In order to determine whether differences were caused by better adaptation of the Shandong parasitoid clade to the population of the host in that province or if it represents a more general fitness of this clade to control the host regardless of location, we compared the same parasitoid clades with hosts from Hebei Province. We found no significant differences in the developmental threshold temperature, effective accumulated temperature, fecundity, longevity, and oviposition period of the two clades, but the duration of host searching of the Shandong clade was significantly longer than that of the Liaoning clade. The instantaneous attack rate, the control ability (a/Th), the search parameter (Q) of the Shandong clade (0.0946, 0.543, 0.0725) ofA. maliwere higher than that of the Liaoning clade (0.0713, 0.382, 0.0381), and therefore, with WAA from Hebei Province as the host, the host adaptability of the Shandong clade ofA. maliwas not worse than that of the Liaoning clade, while the pest control ability of the Shandong clade was still greater than that of the Liaoning clade.

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