Results 111 to 120 of about 30,264 (292)

Mitigating ground effect on mini quadcopters with model reference adaptive control [PDF]

open access: yes, 2019
Mitigating ground effect becomes a big challenge for autonomous aerial vehicles when they are flying in close proximity to the ground. This paper aims to develop a precise model of ground effect on mini quadcopters, provide an advanced control algorithm ...
Chan, SN, Kong, Z, Lee, S, Wei, P
core  

The association of Mediterranean plant species with herbivorous arthropods and its effect on pest abundance in organic vineyards

open access: yesAnnals of Applied Biology, Volume 188, Issue 1, Page 369-385, January 2026.
We determined the associations of native Mediterranean plant species located around organic vineyards with species of Auchenorrhyncha and phytophagous tetranychid and tenuipalpid mites, including important vineyard pests: Jacobiasca lybica and Tetranychus urticae.
Renata Santos   +9 more
wiley   +1 more source

Screening of okra, Abelmoschus esculentus L. (Moench) germplasm collections against two spotted spider mite, Tetranychus urticae (Koch) based on damage grading index

open access: yesElectronic Journal of Plant Breeding, 2020
The investigation on screening forty one germplasm collections of okra for their reaction against two spotted spider mite Tetranychus urticae (Koch) by damage grading index and mean mite population/cm2 expressed a diverse reaction among the tested ...
T. D. Jayabal, C. Chinniah and M. Kalyasundaram
doaj   +1 more source

Winter Temperature Affects Fatty Acid Composition and Gene Expression, but Not Fat Content and Survival in a Northern Population of a Range‐Expanding Spider

open access: yesEcology and Evolution, Volume 15, Issue 12, December 2025.
This study provides insight into the performance of a range‐expanding species and the physiological and molecular mechanisms underlying thermal tolerance at its expanding edge. ABSTRACT Species expand their geographic distribution when environmental conditions are favorable or when mutations arise that allow them to live in previously unfavorable ...
Carolina Ortiz‐Movliav   +7 more
wiley   +1 more source

Ohio Economic Insects and Related Anthropods [PDF]

open access: yes, 1989
PDF pages ...
Albrecht, Carl W.   +16 more
core  

Similar Survival Rates of Territorial and Sneaker Males in a Polymorphic Damselfly: A Multi‐Year Study

open access: yesEcology and Evolution, Volume 15, Issue 12, December 2025.
Male Mnais damselflies occur in two genetically controlled morphs: an orange‐winged territorial morph that defends oviposition sites and actively courts females and a co‐occurring clear‐winged sneaker morph that does not defend territories or display, yet mates opportunistically with females.
Yoshitaka Tsubaki   +4 more
wiley   +1 more source

BIOLOGY, HOST RANGE AND NATURAL ENEMIES OF THE COCONUT SPIDER MITE, Oligonychus velascoi RIMANDO

open access: yesAnnals of Tropical Research, 1987
The total developmental period of the coconut spider mite, Oligonychus velascoi Rimando was 6.3 and 6.9 days for those reared on detached and undetached leaflets, respectively.
Tita L. Cayme, Dely P. Gapasin
doaj  

Death by a Thousand Ants: Predation on Grasshoppers by Invasive Ants in a Grassland

open access: yesEcology and Evolution, Volume 15, Issue 12, December 2025.
Invasive ants are known to disrupt litter‐dwelling arthropod communities, but their impacts on large, mobile aboveground insects are less clear. We document predation by the invasive tawny crazy ant (Nylanderia fulva) on adult grasshoppers in a coastal tallgrass prairie, where nearly half of tethered individuals were killed within 24 h, and stable ...
Ryan W. Reihart, Chelse M. Prather
wiley   +1 more source

Managing spider mites in almonds with pesticide-resistant predators

open access: yesCalifornia Agriculture, 1984
Not available – first paragraph follows: During the past three years, we have investigated the use of pesticide-resistant strains of spider mite predator released into almond orchards as components of an integrated management program. This predatory mite,
M Hoy   +5 more
doaj  

Comparative Genomics of the Endosymbiont Cardinium Causing Reproductive Manipulation in Encarsia Parasitoid Wasps

open access: yesMicrobiologyOpen, Volume 14, Issue 6, December 2025.
We assembled four Cardinium hertigii draft genomes: cEina3 causes cytoplasmic incompatibility, cEhis1 induces parthenogenesis, cEper2 is associated with parthenogenesis, and cEina2 infects asymptomatically. All four strains are closely related and hosted by Encarsia parasitoid wasps, but key differences exist, including their metabolic potential and ...
Dylan L. Schultz   +6 more
wiley   +1 more source

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