scholarly journals Life Cycle of Cydalima perspectalis (Walker) (Lepidoptera: Crambidae) in Craiova Area

2020 ◽  
Vol 77 (2) ◽  
pp. 84
Author(s):  
Raluca STAN ◽  
Ion MITREA
Keyword(s):  
Life Cycle ◽  
Botanical Garden ◽  
Field Population ◽  
Asian Continent ◽  
Laboratory Conditions ◽  
Fifth Generation ◽  
Buxus Sempervirens ◽  
Ornamental Species

Buxus sempervirens Linné is one of the most cultivated ornamental species, but in recent years it has faced a dangerous pest, Cydalima perspectalis (Walker) (Lepidoptera: Crambidae) native to the Asian Continent (China, Japan, Korea). In 2019 we conducted some investigations on the life cycle of this pest. The research was carried out both in the laboratory and in the field, in the ‘Al. Buia’ Botanical Garden from Craiova. Under laboratory conditions, this species has developed four complete generations, and the fifth generation, partial. The temperature in the laboratory was between 23.5°C-26°C, and the photoperiod during the study was between 12-15 hours of light and 12-9 hours of darkness. In the field this pest has developed three complete generations and the fourth was partial. The number of days for the generations developed in the laboratory is 272 days, and for the field population 286 days.

scholarly journals Biology and Mass Rearing Studies of Eucanthecona furcellata Wolf. (HEMIPTERA: PENTATOMIDAE) a Potential Polyphagous Predator and its Effect on Field Population of White Slug Caterpillar, Parasa philepida in Cabadbaran, Agusan del Norte, Philippines

CORD ◽  
1993 ◽  
Vol 9 (01) ◽  
pp. 34
Author(s):  
Vivencio C. Gallego ◽  
Ruby T. Escalona ◽  
Joana M.S. Ferreira
Keyword(s):  
Life Cycle ◽  
Ecological Factors ◽  
Mass Rearing ◽  
Field Population ◽  
Pest Population ◽  
Laboratory Conditions ◽  
Polyphagous Predator ◽  
Rearing Techniques ◽  
Total Life

The biology and mass rearing of Eucanthecona furcellata Wolf, a polyphagous predator, was studied under laboratory conditions.   The predator has a total life cycle (egg to adult) of 46.25 days. The egg hatched 6 days after laying. The nymphs undergo seven instars with each stage ranging from 2.0 ‑ 2.35 days.   Mass‑rearing techniques, effect of field releases and other ecological factors on pest population as well as other biological informations are also described.

The life cycle of Hyalomma asiaticum kozlovi Olenev, 1931 (Acari: Ixodidae) under laboratory conditions

2009 ◽  
Vol 160 (1-2) ◽  
pp. 134-137 ◽  
Author(s):  
Ze Chen ◽  
Zhijun Yu ◽  
Xiaojun Yang ◽  
Hongyuan Zheng ◽  
Jingze Liu
Keyword(s):  
Life Cycle ◽  
Laboratory Conditions

The life cycle of Haemaphysalis qinghaiensis (Acari: Ixodidae) ticks under laboratory conditions

2012 ◽  
Vol 59 (4) ◽  
pp. 493-500 ◽  
Author(s):  
Miling Ma ◽  
Guiquan Guan ◽  
Ze Chen ◽  
Zhijie Liu ◽  
Aihong Liu ◽  
...  
Keyword(s):  
Life Cycle ◽  
Haemaphysalis Qinghaiensis ◽  
Laboratory Conditions

scholarly journals Insecticidal Effect of Zinc Oxide Nanoparticles against Spodoptera frugiperda under Laboratory Conditions

Insects ◽  
2021 ◽  
Vol 12 (11) ◽  
pp. 1017
Author(s):  
Sarayut Pittarate ◽  
Julius Rajula ◽  
Afroja Rahman ◽  
Perumal Vivekanandhan ◽  
Malee Thungrabeab ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Life Cycle ◽  
Pest Management ◽  
Zno Nanoparticles ◽  
Spodoptera Frugiperda ◽  
Adult Emergence ◽  
Zno Nps ◽  
Alternative Source ◽  
Laboratory Conditions ◽  
Significant Difference

Fall armyworm Spodoptera frugiperda is a major pest of corn, rice, and sorghum among other crops usually controlled using synthetic or biological insecticides. Currently, the new invention of nanotechnology is taking root in the agricultural industry as an alternative source of pest management that is target-specific, safe, and efficient. This study sought to determine the efficacy of commercial Zinc Oxide (ZnO) nanoparticles (NPs) towards S. frugiperda under laboratory conditions. ZnO NPs were diluted into different concentrations (100–500 ppm), where the baby corn used to feed the S. frugiperda larvae was dipped. The development of the insect feeding on food dipped in ZnO solution was significantly (p < 0.05) affected, and the number of days that the insect took to complete its life cycle had a significant difference compared to the control. There was a significant difference in the adults’ emergence in all the concentrations of ZnO NPs compared to the control, with over 90% of the eggs successfully going through the life cycle until adult emergence. Additionally, several body malformations were observed throughout the lifecycle of the insect. Also, the fecundity of the females was greatly affected. The findings of this study suggest the possibility of exploitation of ZnO nanoparticles not only to manage S. frugiperda but to significantly reduce their population in the ecosystem through body deformations, reduced fecundity, reduced oviposition, and hatchability of eggs. It will be a valuable tool in integrated pest management regimens.

scholarly journals Morphobiological characteristics of trematode cercariae of the families Opisthorchiidae and Notocotylidae

2020 ◽  
Vol 49 (6) ◽  
pp. 71-78
Author(s):  
О. M. Bonina ◽  
Е. А. Serbina
Keyword(s):  
Life Cycle ◽  
Western Siberia ◽  
The Body ◽  
Parasitic Diseases ◽  
Body Structure ◽  
Intermediate Hosts ◽  
Laboratory Conditions ◽  
Bithynia Tentaculata ◽  
Morphobiological Characteristics

The results of studying the body structure of trematode cercariae of the families Opisthorchiidae and Notocotylidae and the features of their development in Western Siberia are presented. The data of long-term (1994–2019) studies on the spread of these pathogens of dangerous parasitic diseases in humans and animals are analyzed and summarized. The studies were conducted according to generally accepted methods in parasitology and hydrobiology. The species affi  liation of trematodes was determined in laboratory conditions on mature cercariae that independently left the shells of the host mollusks Bithynia tentaculata and B. troscheli. It was noted that the trematodes of the Opisthorchiidae and Notocotylidae families at the cercaria stage have the following similar features: a simple tail, pigmented eyes, and one oral sucking cup. Diagnosis of trematode cercariae of Opisthorchiidae and Notocotylidae families is possible by the following signs: the tail of the opisthorchis cercaria has a swimming membrane and is 2 times longer than the body, the tail of the notocotylid has no swimming membrane and is approximately equal in length to the body. Opisthor-chis cercariae have two pigment eyes, notocotilids – three. In the life cycle of opisthorchis, there are two intermediate hosts (bitinia and fi  sh), in the notocotylid cycle, one (bitinia). Opisthorchis cercariae have penetration glands, but notocotylids do not; the maximum daily emission of opisthorchis cercariae is ten times higher than that of notocotylids (6672 and 422 cercariae, respectively). The ability to diagnose opisthorchis and notocotilid at the cercaria stage allows the identifi cation of local foci of epidemiologically and epizootically dangerous diseases.

scholarly journals Life Cycle of Dermacentor everestianus Hirst, 1926 (Acari: Ixodidae) under Laboratory Conditions

2017 ◽  
Vol 55 (2) ◽  
pp. 193-196 ◽  
Author(s):  
Shang Jin ◽  
Tianhong Wang ◽  
Tuo Li ◽  
Ming Liu ◽  
Qingying Jia ◽  
...  
Keyword(s):  
Life Cycle ◽  
Laboratory Conditions ◽  
Dermacentor Everestianus

Some aspects of the life cycle of the tick ixodes pilosus under laboratory conditions

1991 ◽  
Vol 62 (1) ◽  
pp. 15-16 ◽  
Author(s):  
Y. Rechav
Keyword(s):  
Life Cycle ◽  
Egg Production ◽  
Feeding Time ◽  
Laboratory Conditions ◽  
Preoviposition Period ◽  
The Mean

Some aspects of the life cycle of the tick Ixodes pilosus were studied under laboratory conditions. The preoviposition period was 7,2 ± 0,6 d. Maximum egg production was on Day 4 after oviposition commenced, with total egg production of 2 395 ± 128,7 eggs per female. The mean feeding time of larvae was 3,3 ± 0,1 d. The life cycle could not be completed due to the specific requirements of this species.

scholarly journals Life Cycle, Feeding, and Defecation Patterns of Triatoma carrioni (Hemiptera: Reduviidae), Under Laboratory Conditions

2019 ◽  
Vol 56 (3) ◽  
pp. 617-624 ◽  
Author(s):  
Anabel Padilla N ◽  
Ana L Moncayo ◽  
Clifford B Keil ◽  
Mario J Grijalva ◽  
Anita G Villacís
Keyword(s):  
Life Cycle ◽  
Laboratory Conditions
Sign in / Sign up

Export Citation Format

Share Document