John J Obrycki
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Explore the profile of John J Obrycki including associated specialties, affiliations and a list of published articles.
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22
Citations
162
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Recent Articles
1.
Athey K, Chapman E, Al-Khatri S, Moktar A, Obrycki J
J Insect Sci
. 2024 Sep;
24(4).
PMID: 39243221
The date palm (Phoenix dactylifera L.) (Arecales: Arecaceae) is the most economically important crop in Oman with an annual production of >360,000 tons of fruit. The Dubas bug (Ommatissus lybicus...
2.
Li H, Peng Y, Wang Y, Summerhays B, Shu X, Vasquez Y, et al.
BMC Biol
. 2023 Jun;
21(1):141.
PMID: 37337183
Background: The harlequin ladybird Harmonia axyridis (Coleoptera: Coccinellidae), native to Asia, has been introduced to other major continents where it has caused serious negative impacts on local biodiversity. Though notable...
3.
Nadeau E, Lecheta M, Obrycki J, Teets N
Insects
. 2022 Apr;
13(4).
PMID: 35447785
Diapause is an alternate development program that synchronizes an insect's life cycle with seasonally abundant resources and ensures survival in unfavorable conditions. The physiological basis of diapause has been well...
4.
Li H, Li B, Lovei G, Kring T, Obrycki J
Ann Entomol Soc Am
. 2021 Mar;
114(2):119-136.
PMID: 33732410
Over the past 30 yr, multiple species of predatory Coccinellidae, prominently L. and (Pallas) (Coleoptera: Coccinellidae) have spread to new continents, influencing biodiversity and biological control. Here we review the...
5.
Mercer N, Obrycki J, Bessin R
J Econ Entomol
. 2021 Feb;
114(1):197-200.
PMID: 33558907
Melanaphis sacchari Zehntner is a new pest of sweet sorghum in the United States, with the potential to cause complete crop failure. In Kentucky, sweet sorghum is normally planted in...
6.
Unlu A, Obrycki J, Bucher R
Ecol Evol
. 2020 Dec;
10(23):13334-13344.
PMID: 33304541
Novel predator-prey interactions can contribute to the invasion success of non-native predators. For example, native prey can fail to recognize and avoid non-native predators due to a lack of co-evolutionary...
7.
Obrycki J
Environ Entomol
. 2020 Aug;
49(5):1164-1170.
PMID: 32860040
Quantifying responses of three congeneric species of lady beetles, Hippodamia parenthesis (Say), Hippodamia convergens (Guerin), and Hippodamia variegata (Goeze) (Coleoptera: Coccinellidae), to abiotic factors that influence their seasonal biology provides...
8.
Sethuraman A, Janzen F, Weisrock D, Obrycki J
Insects
. 2020 Jul;
11(8).
PMID: 32708047
Biological control-the use of organisms (e.g., nematodes, arthropods, bacteria, fungi, viruses) for the suppression of insect pest species-is a well-established, ecologically sound and economically profitable tactic for crop protection. This...
9.
Li H, Qu W, Obrycki J, Meng L, Zhou X, Chu D, et al.
Insects
. 2020 May;
11(5).
PMID: 32397374
Finding optimal sample sizes is critical for the accurate estimation of genetic diversity of large invasive populations. Based on previous studies, we hypothesized that a minimal sample size of 3-8...
10.
Mercer N, Teets N, Bessin R, Obrycki J
Environ Entomol
. 2019 Nov;
49(1):1-9.
PMID: 31748809
For insects that overwinter as adults, winter food resources may affect subsequent spring reproduction and abundance. We tested if provision of food supplements to overwintering adult Hippodamia convergens (Guerin) increased...