Results 41 to 50 of about 9,808 (212)
Ecology and evolution of pyrazines in insects
ABSTRACT Chemical communication is the oldest and most widespread form of signalling among and within organisms. Among the many compounds involved in such communication, pyrazines – nitrogen‐containing heterocyclic molecules – are especially intriguing due to their widespread occurrence across the tree of life, from bacteria and fungi to insects and ...
Zowi Oudendijk +2 more
wiley +1 more source
The feeding and excretion rates of Aphis Fabae Scop. on Vicia Faba L
The feeding and excretion rates of nymphs of Aphis fabae, feeding on young leaves of Vicia faba, were studied, using host plants grown in water culture and made radioactive with 32P.
Banks, C. J. +3 more
core +1 more source
Effects of Aquaculture on Migration and Movement Patterns of Double-Crested Cormorants
We analyzed 10,620 recovery records for double-crested cormorants (Phalacrocorax auritus) banded as nestlings from 1923 to 2006 to determine the population’s age structure, migration routes, dispersal patterns, and the possible influence of the expansion
D. Tommy King +3 more
doaj +1 more source
Abstract The papaya tree (Carica papaya L.), native to the Americas, is cultivated in tropical regions and holds substantial economic importance, with an estimated export volume of 365 000 t in 2023. However, diseases caused by viruses, fungi, bacteria, and nematodes can lead to severe losses.
Luíza Favaratto +7 more
wiley +1 more source
Lipolexis gracilis Förster, 1862 - new record of an aphid parasitoid from Malta (Hymenoptera, Braconidae, Aphidiinae) [PDF]
Lipolexis gracilis, an aphid parasitoid reared from a species of Aphis associated with Papaver is newly recorded from Malta.
Mifsud, David, Stary, Petr
core
Field experiments on the control of aphis-transmitted virus diseases of Hyosujamus Niger
1 Aphis infestation of the first‐year's growth of Hyoscyamus niger grown as a biennial crop, was reduced by spraying with a solution of nicotine and soft soap for the first 8 or 9 weeks. 2 The greatest effect was obtained by spraying at weekly intervals,
Watson, M. A.
core +1 more source
In 2009, Mycobacterium bovis infection was detected in a herd of 60 elk (Cervus elaphus) and 50 fallow deer (Dama dama) in Nebraska, USA. Upon depopulation of the herd, the prevalence of bovine tuberculosis (TB) was estimated at ∼71–75%, based upon ...
W. Ray Waters +15 more
doaj +1 more source
Ionizing radiation is used as a phytosanitary treatment to prevent the introduction of pests through trade. Generic doses are a valuable means to increase the number of pest-commodity combinations that can be treated using phytosanitary irradiation ...
Cory Penca +2 more
doaj +1 more source
Aphis (Aphis) cephalariae Barjadze 2011
4. * Aphis (Aphis) cephalariae Barjadze Distribution in Armenia: five apterous viviparous females on two slides, on Cephalaria gigantea (Ledeb.) Bobrov (Dypsacaceae), Tavush province, north surroundings of Semyonovka village (40°40’42.81”N, 44°52’48.75”E), altitude 1918 m. a.s.l., 04.VII.2021, leg. I. Stepanyan, (022Е21М 1-2), IZAY.
Stepanyan, Ilona +3 more
openaire +2 more sources
T(w)o Patch or Not T(w)o Patch: A Novel Biocontrol Model
ABSTRACT A number of top‐down biocontrol models have been proposed where the introduced predators' efficacy is enhanced via the provision of additional food (AF). However, if the predator has a pest‐dependent monotone functional response, pest extinction is unattainable. In the current manuscript, we propose a model where a predator with pest‐dependent
Urvashi Verma +2 more
wiley +1 more source

