scholarly journals Relative Susceptibility, Preference, and Suitability ofCarpinusTaxa for the Japanese Beetle (Coleoptera: Scarabaeidae) 1

2021 ◽  
Vol 39 (1) ◽  
pp. 11-21
Author(s):  
Fredric Miller ◽  
Susan Wiegrefe
Keyword(s):  
Leaf Tissue ◽  
Tree Breeding ◽  
Feeding Preference ◽  
Host Susceptibility ◽  
Urban Landscapes ◽  
Popillia Japonica ◽  
Japanese Beetle ◽  
Leaf Toughness ◽  
Negative Effect ◽  
Preferred Species

AbstractNineteen Carpinus taxa were evaluated in no-choice and multiple-choice laboratory feeding bioassays for susceptibility, preference, and suitability for the adult Japanese beetle (Popillae japonica Newman). No-choice laboratory feeding bioassays revealed that only three Carpinus taxa, Carpinus caucasica Grossh., Carpinus tschonoskii Maxim., and the hybrid Carpinus caroliniana x C. coreana, were significantly less susceptible and less suitable to feeding and for reproduction by Japanese beetles. Leaf tissue removed was related to the amount of frass produced, but was not related to leaf thickness, inner or outer leaf toughness, or fecundity. Frass production did not reflect fecundity. Hybridization may have either a positive or negative effect on host susceptibility, preference, and suitability. When a moderately preferred species such as C. caroliniana Walter or C. betulus L. is crossed with a species of equal or higher susceptibility, (i.e. C. coreana Nakai, Blume, or C. laxiflora (Sieb. and Zucc.) Blume) feeding preference increases. A “C. tschonskii factor” (Maxim.) appears to affect susceptibility and preference. There does not appear to be a large pool of Carpinus taxa suitable for future tree breeding programs in areas where Japanese beetle outbreaks are common. Potential use of Carpinus taxa in urban landscapes and forests is discussed.Index words: Susceptibility, preference, suitability, Japanese beetle, Popillia japonica, Carpinus.Species used in this study: Carpinus betulus L., C. caroliniana Walter, C. caucasica Grossh, C. cordata Blume, C. coreana Nakai, C. fargesii Franch, C. japonica Blume, C. laxiflora, (Sieb. and Zucc.) Blume, C. orientalis Mill, C. tschonoskii Maxim, C. turczaninowii Hance, C. betulus x tschonoskii, C. caroliniana x betulus, C. caroliniana x (C. betulus x tschonoskii), C. caroliniana x cordata, C. caroliniana x coreana, C. caroliniana x orientalis, C. caroliniana x tschonoskii, C. caroliniana x coreana, C. cordata x C. japonica, and, Sassafras albidum (Nutt.) Nees.

scholarly journals Feeding Preference of Japanese Beetles for Taxa of Birch, Cherry and Crabapple

1992 ◽  
Vol 10 (3) ◽  
pp. 177-180
Author(s):  
Thomas G. Ranney ◽  
James F. Walgenbach
Keyword(s):  
Natural Populations ◽  
Selection Criterion ◽  
Feeding Preference ◽  
Natural Resistance ◽  
Popillia Japonica ◽  
Japanese Beetle ◽  
Resistant Species ◽  
Choice Tests ◽  
Individual Trees ◽  
Significant Injury

Abstract Preference of adult Japanese beetle (Popillia japonica Newman) for different species, varieties, and cultivars was compared among 33 crabapple (Malus Mill.), nine cherry (Prunus L.), and nine birch (Betula L.) taxa. Field-grown crabapples and cherries and container-grown birches were visually rated based on the percentage of total leaf area skeletonized by natural populations of this beetle. The largest variation in the preference of Japanese beetles was found among the crabapples, with injury ranging from 0 to 83%. Eighteen of the crabapple taxa had no significant injury. All of the cherry taxa were skeletonized in excess of 46%, suggesting little natural resistance among these plants. Eight of the birch taxa had no significant injury, while one species, B. jacquemontii, had an average injury of 16%. An additional study was conducted to evaluate the degree of resistance of selected crabapple taxa by caging beetles on branches of individual trees in no choice tests. Although beetles continued to feed on one resistant species, M. hupehensis (a species without injury under natural conditions), beetles would not feed on leaves of another resistant cultivar, M. baccata ‘Jackii’, when caged on those trees. These results indicate there is considerable potential for using resistance to adult Japanese beetle feeding as one selection criterion when choosing taxa of crabapple and birch for use in the landscape. Results also suggest that the mechanism(s) of resistance can vary and may include aspects of avoidance (low attraction of beetles) as well as antixenosis.

scholarly journals Blackberry Cultivar Feeding Preference of Adult Japanese Beetles

HortScience ◽  
2019 ◽  
Vol 54 (5) ◽  
pp. 885-889
Author(s):  
Maciej A. Pszczolkowski ◽  
Kyndra Chastain ◽  
Rachel Veenstra ◽  
Martin L. Kaps
Keyword(s):  
United States ◽  
Insect Pests ◽  
The United States ◽  
Feeding Preference ◽  
Popillia Japonica ◽  
Eastern United States ◽  
Japanese Beetle ◽  
Average Percentage ◽  
Severity Rating ◽  
Beetle Damage

The Japanese beetle (Popillia japonica Newman) is one of the most widespread and destructive invasive insect pests in the eastern United States. Blackberry (Rubus sp.) production in the United States has increased significantly in recent years. With the introduction of new blackberry cultivars, insect resistance should become the focus of further breeding efforts. The objective of the current study was to evaluate the susceptibility of 13 blackberry cultivars to the Japanese beetle. The seasonal population dynamics of this insect, beetle damage to blackberry foliage, and beetle preference of blackberry cultivars were monitored from 2016 to 2018 on a blackberry plantation in Mountain Grove, MO. Japanese beetles feeding on blackberries occurred between 814 to 1251 cumulative degree-days (CDD; base, 10 °C) after 1 Jan. The following cultivars were evaluated: Apache, APF-40, Arapaho, Chester, Chickasaw, Kiowa, Natchez, Osage, Ouachita, Prime-Ark 45, Prime-Jan, Prime-Jim, and Triple Crown. Foliage damage incidence, defined as average percentage of leaves damaged by beetles on a given cane, did not differ among the cultivars. However, average severity of damage, estimated by rating on a scale from 0 (least) to 5 (most) of all damaged leaves on a given cane was different among cultivars. Ouachita and APF-40 exhibited the lowest damage severity rating among floricanes and primocanes, respectively. Apache (a floricane) and Prim-Jan (a primocane) were the most susceptible cultivars. Japanese beetle preferences for cultivars correlated with the degree of foliage damage. Because all blackberry cultivars exhibited similar foliage feeding incidence, but different feeding severity, we suggest the Japanese beetle does not differentiate among blackberry cultivars from a distance, but does upon contact with the foliage of a given plant.

scholarly journals Evaluation of Dogwood and Birch Species and Cultivars for Resistance to Key Insect Pests and Diseases

2001 ◽  
Vol 19 (2) ◽  
pp. 73-78
Author(s):  
Monte P. Johnson ◽  
John R. Hartman ◽  
Robert E. McNiel ◽  
William M. Fountain
Keyword(s):  
Powdery Mildew ◽  
Leaf Spot ◽  
Insect Pests ◽  
Urban Landscapes ◽  
Popillia Japonica ◽  
Japanese Beetle ◽  
Pests And Diseases ◽  
Cornus Mas ◽  
Bronze Birch Borer ◽  
Dogwood Borer

Abstract Ten cultivars of dogwoods (Cornus spp.) were evaluated in multi-year trials for relative reisistance to the dogwood borer, Synanthedon scitula (Harris); cold injury; canker disease, Botryosphaeria dothidea; spot anthracnose, Elsinoe corni; and powdery mildew, Oidium sp., Microsphaera sp., and Phyllactinia sp. Similarly, eight cultivars of birch (Betula spp.) were evaluated for resistance to the birch leafminer, Fenusa pusilla (Lepeletier); Japanese beetle, Popillia japonica Newman; aphids, Hamamelistes spinosus Shimer; the bronze birch borer, Agrilus anxius Gory; and leaf-spot, Cryptocline betularum. All cultivars of C. florida, C. kousa and C. kousa x florida were susceptible to dogwood borer, although the C. florida cultivars were surviving better than the others. Cornus mas and C. kousa cultivars were relatively resistant to powdery mildew while C. florida x kousa hybrids and C. florida ‘Cherokee Brave’ were intermediately resistant. Betula platyphylla szechuanica ‘Purpurea’ was highly susceptible to the bronze birch borer, whereas B. nigra and B. n. ‘Heritage’ were the most susceptible birches to aphid damage. Betula jacquemontii was highly susceptible to Japanese beetle defoliation. Betula pendula, B. nigra, and B. n. ‘Heritage’ were most susceptible to defoliation by birch leaf spot. This study suggests that dogwood and birch cultivars vary in susceptibility to key insect pests and diseases. Planting relatively resistant cultivars may be useful in managing perennial pests in urban landscapes.

scholarly journals Mechanics-based analysis of selected features of the exoskeletal microstructure of Popillia japonica

2009 ◽  
Vol 24 (11) ◽  
pp. 3253-3267 ◽  
Author(s):  
Liang Cheng ◽  
Liyun Wang ◽  
Anette M. Karlsson
Keyword(s):  
Cross Section ◽  
Cross Sections ◽  
Fiber Orientation ◽  
Fracture Resistance ◽  
Interfacial Strength ◽  
Maximum Tensile Stress ◽  
Popillia Japonica ◽  
Japanese Beetle ◽  
Mechanical Responses ◽  
Helicoidal Structure

We explore key mechanical responses of the layered microstructure found in selected parts of the exoskeletons (pronotum, leg and elytron) of Popillia japonica (Japanese beetle). Image analyses of exoskeleton cross-sections reveal four distinct layered regions. The load-bearing inner three regions (exocuticle, mesocuticle, and endocuticle) consist of multiple chitin-protein layers, in which chitin fibers align in parallel. The exocuticle and mesocuticle have a helicoidal structure, where the stacking sequence is characterized by a gradual rotation of the fiber orientation. The endocuticle has a pseudo-orthogonal structure, where two orthogonal layers are joined by a thin helicoidal region. The mechanics-based analyses suggest that, compared with the conventional cross-ply structure, the pseudo-orthogonal configuration reduces the maximum tensile stress over the exoskeleton cross-section and increases the interfacial fracture resistance. The coexistence of the pseudo-orthogonal and helicoidal structures reveals a competition between the in-plane isotropy and the interfacial strength in nature’s design of the biocomposite.

POPILLIA JAPONICA (COLEOPTERA: SCARABAEIDAE): DISTRIBUTION AND MOVEMENT OF ADULTS IN HETEROGENEOUS ENVIRONMENTS

1983 ◽  
Vol 115 (3) ◽  
pp. 287-294 ◽  
Author(s):  
Jacques Régnière ◽  
Robert L. Rabb ◽  
R. E. Stinner
Keyword(s):  
North Carolina ◽  
Point Of View ◽  
Popillia Japonica ◽  
Heterogeneous Environments ◽  
Japanese Beetle ◽  
Feeding Sites ◽  
Marginal Production ◽  
Adult Feeding ◽  
Agricultural Areas ◽  
Eastern North Carolina

AbstractAdult Japanese beetle populations were sampled continuously during the summers of 1978 and 1979 in two agricultural stations in eastern North Carolina. Patterns in trap capture were used to develop a conceptual model of the movements of this insect in agricultural areas. A partition of land area is proposed, based on four categories of sites from the point of view of suitability to this insect's reproduction and survival: (1) intensive production sites, (2) marginal production sites, (3) migration alleys, and (4) adult feeding sites. This partition is suggested as a framework for discussion and study of the population dynamics of the insect.

scholarly journals Effects of Fine-Mesh Exclusion Netting on Pests of Blackberry

2019 ◽  
Author(s):  
Ryan Kuesel ◽  
Delia Scott Hicks ◽  
Kendall Archer ◽  
Amber Sciligo ◽  
Ricardo Bessin ◽  
...  
Keyword(s):  
Popillia Japonica ◽  
Japanese Beetle ◽  
Drosophila Suzukii ◽  
Marketable Yield ◽  
Insecticide Treatment ◽  
Fine Mesh ◽  
Baited Traps ◽  
Potential Alternative ◽  
Organically Managed ◽  
Insecticide Sprays

Fine-mesh exclusion netting is a potential alternative to organic and conventional insecticide application to control numerous pests of fruit crops. We tested whether fine-mesh exclusion netting would reduce pest abundance and increase marketable yield compared to organic spinosad insecticide sprays in an organically managed blackberry field. At the completion of flowering, we covered blackberry rows (N = 3) with fine-mesh exclusion netting (ProtekNet) and treated alternating rows (N = 3) with an organic spinosad insecticide (Entrust™). Fine-mesh exclusion reduced green June beetle (Cotinus nitida Linnaeus) and bird presence and marginally reduced Japanese beetle (Popillia japonica Newman) presence on blackberry canes compared to organic spinosad insecticide treatment. Exclusion netting reduced the capture of spotted-wing Drosophila (Drosophila suzukii Matsumara; SWD) in baited traps in the fourth week of exclusion, and reduced the overall number of SWD adults emerging from harvested blackberry fruits. Marketable yield in the fine-mesh exclusion treatments was two times higher than the organic spinosad insecticide treatment. These results suggest that fine-mesh exclusion netting is a functional pest control alternative to organic insecticide treatment.

scholarly journals Japanese beetle feeding and survival on apple fruits

2020 ◽  
Vol 36 (4) ◽  
Author(s):  
Evaldo Martins Pires ◽  
Robert Lee Koch
Keyword(s):  
Physiological Response ◽  
Food Source ◽  
Popillia Japonica ◽  
Japanese Beetle ◽  
Soybean Leaves ◽  
Apple Fruits ◽  
Economic Damages

Popillia japonica (Coleoptera: Scarabaeidae), Japanese beetle, is a polyphagous pest of many crops. In these crops, including apple, it acts primarily as a defoliator, causing economic damages. The objectives were to determine the ability of P. japonica to injury fruits of SweeTango variety apples and the suitability of apple fruits as a food source for this beetle. Popillia japonica was not able to injure the surface of intact fruits, which means that it is not a primary pest for apple fruits. The lifespan of the beetles when fed soybean leaves or apple with exposed endocarp was similar. Observations of the feces of the beetles suggest a potential physiological response due the change of food from soybean leaves to apple fruits. Therefore, we can conclude that the adults should not be considered as primary pests of apple fruits; however, they may act as secondary pests if the endocarp of the fruits is exposed by some other agent.  

Sign in / Sign up

Export Citation Format

Share Document