A Comparison of Oviposition and Nymphal Development of Empoasca Fabae (Harris) on Different Host Plants

1931 ◽  
Vol 24 (2) ◽  
pp. 361-371 ◽  
Author(s):  
F. W. Poos ◽  
Floyd F. Smith
Keyword(s):  
Host Plants ◽  
Empoasca Fabae ◽  
Nymphal Development

scholarly journals Compared nymphal development of Tingis americana (Hemiptera, Tingidae) in two Handroanthus species (Bignoniaceae) and reproductive parameters in seedlings of Handroanthus heptaphyllus

2013 ◽  
Vol 103 (2) ◽  
pp. 195-199 ◽  
Author(s):  
Daiane C. Moreira ◽  
Luiza R. Redaelli ◽  
Marcus Guidoti ◽  
Aline Barcellos
Keyword(s):  
Host Plants ◽  
First Record ◽  
Reproductive Parameters ◽  
Egg Viability ◽  
Rio Grande Do Sul ◽  
Botanic Garden ◽  
Porto Alegre ◽  
Nymphal Development ◽  
Males And Females ◽  
The Mean

Nymphs and adults of Tingis americana Drake, 1922 were found feeding on leaves of Handroanthus heptaphyllus (Vell.) Mattos and Handroanthus chrysotrichus (Mart. ex A. DC.) Mattos in the Botanic Garden, Porto Alegre, state of Rio Grande do Sul, Brazil. This is the first record of T. americana on these host plants and in the southern Brazil. We aimed to compare the nymphal development on both hosts and to analyze the reproductive parameters on H. heptaphyllus (25 ± 1ºC; 60 ± 10% RH; 16 h photophase). The mean nymphal period (days) was shorter in individuals reared on H. heptaphyllus (12.69 ± 0.076) than on H. chrysotrichus (19.11 ± 0.208) (P < 0.0001), however, nymph viability was similar. On H. heptaphyllus, the mean embryonic period lasted 12.32 ± 0.274 days and the egg viability was 92%. The mean total and daily fecundity were 310.0 ± 19.40 eggs/female and 7.46 ± 0.302 eggs/female/day, respectively. Paired males and females showed similar longevity (P = 0.0691), while unpaired females lived longer than unpaired males (P = 0.0460).

scholarly journals The Effects of Different Diets and Transgenerational Stress on Acyrthosiphon pisum Development

Insects ◽  
2019 ◽  
Vol 10 (9) ◽  
pp. 260 ◽  
Author(s):  
Daniel Pers ◽  
Allison Hansen
Keyword(s):  
Host Plants ◽  
Acyrthosiphon Pisum ◽  
Life Stage ◽  
Mixed Population ◽  
Agricultural Pests ◽  
Nymphal Instar ◽  
Significant Delay ◽  
Artificial Diets ◽  
Nymphal Development ◽  
Sap Feeding

Despite the fact that sap-feeding hemipterans are major agricultural pests, little is known about the pea aphid’s (Acyrthosiphon pisum) nymphal development, compared to other insect models. Given our limited understanding of A. pisum nymphal development and variability in the naming/timing of its developmental events between different environmental conditions and studies, here, we address developmental knowledge gaps by elucidating how diet impacts A. pisum nymphal development for the LSR1 strain when it develops on its universal host plant (Vicia faba), isolated leaves, and artificial diet. Moreover, we test how plant age and transgenerational stressors, such as overcrowding and low plant vigor, can affect nymphal development. We also validate a morphological method to quickly confirm the life stage of each nymphal instar within a mixed population. Overall, we found extremely high variation in the timing of developmental events and a significant delay in nymphal (~5–25-h/instar) and pre-reproductive adult (~40-h) development when reared on isolated leaves and artificial diets, compared to intact host plants. Also, delays in development were observed when reared on older host plants (~9–17-h/event, post 2nd instar) or when previous generations were exposed to overcrowding on host plants (~20-h delay in nymph laying) compared to controls.

scholarly journals Populations and Host/Non-Host Plants of Spittlebugs Nymphs in Olive Orchards from Northeastern Portugal

Insects ◽  
2020 ◽  
Vol 11 (10) ◽  
pp. 720 ◽  
Author(s):  
María Villa ◽  
Isabel Rodrigues ◽  
Paula Baptista ◽  
Alberto Fereres ◽  
José Alberto Pereira
Keyword(s):  
Host Plants ◽  
Ground Cover ◽  
Middle Part ◽  
Bromus Diandrus ◽  
Philaenus Spumarius ◽  
Nymphal Development ◽  
Development Period ◽  
Olive Groves ◽  
Ground Cover Plant ◽  
Ground Cover Vegetation

The Aphrophoridae family contains important vectors of Xylella fastidiosa, a serious bacterial plant disease. In olive orchards, nymphs usually feed on the ground-cover vegetation. However, detailed information about their populations and host/non-host plants in some regions threatened by Xylella, such as the northeast of Portugal, is very limited. The goal of our work was to identify the vector species, nymphal development period, and their host and non-host herbaceous plants in olive orchards from northeastern Portugal. Ground-cover plant species hosting or not hosting nymphs were identified during the spring of 2017 to 2019 in olive orchards. Nymphal development period, nymph aggregation, and nymph’s preferred feeding height of the ground-cover plants were recorded. The most abundant Aphrophoridae species was Philaenus spumarius followed by Neophilaenus sp. Nymphs developed from April to early May and showed a low number of individuals per foam (generally between one and three). They preferred the middle part of the plants. Philaenus spumarius feeds preferentially on Asteraceae and Fabaceae, and Neophilaenus sp. on Poaceae. Some abundant plants, such as Bromus diandrus, Astragalus pelecinus, Chrysanthemum segetum, Trifolium spp., Caryophyllaceae, and Brassicaceae, were barely colonized by Aphrophoridae nymphs. This knowledge is essential for the selection of the species composition of ground-cover vegetation to minimize the presence of vectors of X. fastidiosa in olive groves.

Suitability of common weed species as host plants for the potato leafhopper, Empoasca fabae

1984 ◽  
Vol 36 (2) ◽  
pp. 125-131 ◽  
Author(s):  
William O. Lamp ◽  
Marilyn J. Morris ◽  
Edward J. Armbrust
Keyword(s):  
Host Plants ◽  
Potato Leafhopper ◽  
Empoasca Fabae ◽  
Weed Species

Yellow Brazilian Pepper-tree Leaf Galler (suggested common name) Calophya latiforceps Burckhardt (Insecta: Hemiptera: Calophyidae: Calophyinae)

EDIS ◽  
2017 ◽  
Vol 2017 (6) ◽  
Author(s):  
James P. Cuda ◽  
Patricia Prade ◽  
Carey R. Minteer-Killian
Keyword(s):  
Biological Control ◽  
North America ◽  
Natural Enemies ◽  
Host Plants ◽  
Classical Biological Control ◽  
Biological Control Agents ◽  
Pepper Tree ◽  
Brazilian Pepper ◽  
Close Relatives ◽  
Tree Leaf

In the late 1970s, Brazilian peppertree, Schinus terebinthifolia Raddi (Sapindales: Anacardiaceae), was targeted for classical biological control in Florida because its invasive properties (see Host Plants) are consistent with escape from natural enemies (Williams 1954), and there are no native Schinus spp. in North America. The lack of native close relatives should minimize the risk of damage to non-target plants from introduced biological control agents (Pemberton 2000). [...]

Sign in / Sign up

Export Citation Format

Share Document