Results 51 to 60 of about 5,124 (219)

Parallel Losses of Blue Opsin Correlate with Compensatory Neofunctionalization of UV-Opsin Gene Duplicates in Aphids and Planthoppers

Insects, 2023
Expanding on previous efforts to survey the visual opsin repertoires of the Hemiptera, this study confirms that homologs of the UV- and LW-opsin subfamilies are conserved in all Hemiptera, while the B-opsin subfamily is missing from the Heteroptera and ...
Markus Friedrich
doaj   +1 more source

RNAi‐based functional genomics tools for the beet leafhopper using microinjection and nanoparticle‐based topical spray

Insect Science, EarlyView.
• First demonstration of functional RNAi in the beet leafhopper, Neoaliturus tenellus, using both dsRNA microinjection and star polycation nanoparticle‐mediated topical spray delivery.•Microinjection achieved over 90% knockdown of Gus and Pum3, revealing gene‐specific fitness effects on survival and fecundity in beet leafhopper.•Nanoparticle‐mediated ...
Jinlong Han, Maria Paula Mejia Alonzo, Meihua Cui, Katherine O. Puffer, Anna M. Wolff, Garret M. Miyake, Oliver T. Neher, Vamsi J. Nalam, Punya Nachappa   +8 more
wiley   +1 more source

Leafhoppers and Planthoppers: Their Bionomics, Pathogen Transmission and Management in Vineyards

, 2014
Auchenorrhyncha is the hemipteran suborder that includes cicadas, leafhoppers, froghoppers or spittlebugs, planthoppers and treehoppers. Leafhoppers (Cicadellidae) are cosmopolitan and one of the largest insect families with approximately 22,000 ...
Olivier, Chrystel, Galka, Brian, Vincent, Charles, Maixner, Michael, Saguez, Julien, Weintraub, Phyllis G.   +5 more
core   +1 more source

Occurrence of Scaphoideus titanus Ball and some other Auchenorrhyncha in the vineyards of western Slovakia

Plant Protection Science, 2017
A study of Auchenorrhyncha was carried out in 2014 and 2015 in 7 vineyard plots with different varieties and pest management strategies in the Nitra wine region and Lesser Carpathian wine region in western Slovakia.
Ján Tancik, Gabriel Seljak
doaj   +1 more source

Potato (Solanum tuberosum) as a New Host for Pentastiridius leporinus (Hemiptera: Cixiidae) and Candidatus Arsenophonus Phytopathogenicus

Insects, 2023
Pentastiridius leporinus is a planthopper (Hemiptera: Cixiidae) that vectors two phloem-restricted bacterial pathogens to sugar beet (Beta vulgaris (L.)): the γ-proteobacterium Candidatus Arsenophonus phytopathogenicus and the stolbur phytoplasma ...
Sarah Christin Behrmann, André Rinklef, Christian Lang, Andreas Vilcinskas, Kwang-Zin Lee   +4 more
doaj   +1 more source

From biology to biotechnology: Host‐regulation factors from parasitoid wasps are a source of bioactive molecules with translational potential

Insect Molecular Biology, EarlyView.
Parasitoid wasps deploy maternal and embryonic factors to reprogramme host physiology. Venom, calyx fluid, polydnaviruses, teratocytes and larval secretions act in a coordinated, compartmentalised manner. Host‐regulation factors are promising sources of insecticidal, antimicrobial and bioinspired translational molecules.
Ciro Pedro G. Pinto, Andrew A. Walker, Glenn F. King   +2 more
wiley   +1 more source

Seasonal abundance of Maiestas banda (Hemiptera: Cicadellidae), a vector of phytoplasma, and other leafhoppers and planthoppers (Hemiptera: Delphacidae) associated with Napier grass (Pennisetum purpureum) in Kenya

, 2012
Napier grass (Pennisetum purpureum Schumach), the main fodder crop in eastern Africa, has recently been severely affected by Napier stunt disease, which is caused by phytoplasma.
Fujinuma, S., Adati, T., Pickett, J. A., Wilson, M. R., Asche, Manfred, Asche, M., Wilson, M., Midega, C., Khan, Z. R., Pickett, J., Mohamed, H. M., Ishikawa, Tadashi, Khan, Z., Koji, S., Midega, C. A. O., Ishikawa, T., Mohamed, H., Degelo, S.   +17 more
core   +1 more source

Three dimensional reconstruction of energy stores for jumping in planthoppers and froghoppers from confocal laser scanning microscopy

eLife, 2017
Jumping in planthopper and froghopper insects is propelled by a catapult-like mechanism requiring mechanical storage of energy and its quick release to accelerate the hind legs rapidly.
Igor Siwanowicz, Malcolm Burrows
doaj   +1 more source

Development of an Artificial Liquid Diet for Allelochemical Delivery in Lycorma delicatula

Journal of Applied Entomology, EarlyView.
ABSTRACT Spotted lanternfly, Lycorma delicatula White (Hemiptera: Fulgoridae), is an invasive phloem‐feeding planthopper native to Asia, which poses a growing threat to US agriculture due to its broad host range and rapid spread since its 2014 detection. To better understand how L.
Brian F. Ruether, Mariana Gelambi, Kate A. Burgiss, Alejandra Caballero, Sherry B. Hildreth, Dorothea Tholl   +5 more
wiley   +1 more source

Studies on the Diapause in the Planthoppers

Japanese Journal of Applied Entomology and Zoology, 1958
1) ヒメトビウンカ幼虫を初令から20∼22°Cで種々な日長の下に飼育した。2) 日長が8∼10時間では休眠率は100%になるが,日長がこの範囲からはずれると休眠率は減少する。12時間では約35%の非休眠個体を生じ,14時間ではすでに100%非休眠となる。全期間暗黒状態では約18%の休眠率となる(第1図,第2図)。3) 休眠した個体は4令期間が延びるが,同じ条件下でも徐々ながら発育し,4令期間の個体変異は非常に大きい。休眠個体と非休眠個体との区別は,少なくとも発育日数からは明白にはつけにくい。4) 休眠に入った幼虫も日周期に対する感受性をもっており,長日や極端な短日下では急速に発育を始め,かなり斉一な羽化が見られる。最も長い休眠状態は休眠誘起に好適な日長下で維持される ...
openaire   +3 more sources