نتایج جستجو برای: oviposition activity

تعداد نتایج: 1138479  

پرویز طالبی چایچی, , کریم حداد ایرانی‌نژاد, , فریبا وفائی, , مصطفی ولیزاده, ,

During years 2000 and 2001, biology and population changes of two- spotted spider mite (T. urticae) was studied on five bean cultivars of two species at 25±1ºC temp., 45±4% RH and 15: 9 (L:D) photoperiod, using leaf disks made from 2-, 6- leaf and flowering stages of the plants. The mite mass rearing was carried out on tomato plants under the same environmental conditions and the effects of fee...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 2013
Masasuke Ryuda Delphine Calas-List Ayumi Yamada Frédéric Marion-Poll Hiroshi Yoshikawa Teiichi Tanimura Katsuhisa Ozaki

The swallowtail butterfly, Papilio xuthus, selectively uses a limited number of plants in the Rutaceae family. The butterfly detects oviposition stimulants in leaves through foreleg chemosensilla and requires a specific combination of multiple oviposition stimulants to lay eggs on the leaf of its host plants. In this study, we sought to elucidate the mechanism underlying the regulation of ovipo...

جعفری, علی , فتحی پور, یعقوب,

Biological characteristics of Creontiades pallidus Ramber (an important pest of cotton in Khorasan province, Northeastern Iran) and its predator Nabis capsiformis Germar were determined and compared. The experiments were conducted in the laboratory conditions at 26±1؛C, 65±5% RH and a photoperiod of 16:8 (L:D) h. Statistical analysis of data showed that different developmental periods except th...

Journal: :Brazilian journal of biology = Revista brasleira de biologia 2005
A de M P Kleinert

Physogastric queens of Melipona marginata were removed from their colonies in order to verify the acceptance of a new queen by workers. Colony strength was evaluated according to queen oviposition rate and comb diameters. Replacement was observed seven times. Its occurrence and speed related positively to colony strength, independently of queen's age. In weak colonies, queen replacement was obs...

Journal: :Journal of medical entomology 2005
Eliska Rejmánková Richard Higashi John Grieco Nicole Achee Donald Roberts

Oviposition site selection has been recognized as critical both for the survival and population dynamics of mosquitoes. Volatile substances released from larval habitats have been implicated as potential olfactory cues mediating oviposition. In our continuing studies of cues involved in oviposition site selection, we collected material from the larval habitats of Anopheles albimanus Wiedemann a...

2011
G. Elango A. Abduz Zahir A. Bagavan C. Kamaraj G. Rajakumar T. Santhoshkumar S. Marimuthu A. Abdul Rahuman

BACKGROUND & OBJECTIVES Mosquito control is facing a threat due to the emergence of resistance to synthetic insecticides. Insecticides of plant origin may serve as suitable alternative biocontrol techniques in the future. The purpose of the present study was to assess the ethyl acetate, acetone and methanol extracts of Andrographis paniculata, Eclipta prostrata and Tagetes erecta leaves tested ...

Journal: :Journal of the American Mosquito Control Association 1996
R L Lampman R J Novak

The number of egg rafts oviposited by Culex pipiens and Culex restuans in infusion-baited ovitraps varied with the type of infusion substrate, infusion age, method of infusion preparation, and calendar date. In one or more tests, more Culex egg rafts were collected from water infused with Kentucky bluegrass sod, mixed grass clippings, straw, or a commercial rabbit chow than from a water control...

Journal: :Journal of economic entomology 2001
L Mao R N Story A M Hammond J K Peterson D R Labonte

The effects of nitrogen fertilizer on sweet potato, Ipomoea batatas (L.) Poir., resistance to the sweetpotato weevil, Cylas formicarius elegantulus (Summers), was studied. Adult weevil feeding and oviposition preference, larval survival, and pupal weight were used as measures of sweet potato resistance. Sweet potato resin glycosides and caffeic acid concentrations in the periderm tissue of stor...

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