scholarly journals Morphogenetic traits of the egg parasitoid Trichogramma for controlling certain date palms lepidopteran insect pests in the New Valley Governorate

2018 ◽  
Vol 28 (1) ◽  
Author(s):  
Farouk A. Abdel-Galil ◽  
Sara E. Mousa ◽  
Moustafa M. A. Rizk ◽  
Gaber H. Abo El- Hagag ◽  
Abd El-Latif Hesham
Keyword(s):  
Insect Pests ◽  
Egg Parasitoid ◽  
Date Palms ◽  
Lepidopteran Insect

scholarly journals Contact Toxicity of Insecticides and Biopesticides to Trichogramma Chilonis Ishii. (Hymenoptera: Trichogrammatidae) under Laboratory Condition

2021 ◽  
Author(s):  
Kartik S Nidagundi ◽  
DN Kambrekar ◽  
C. P. Mallapur
Keyword(s):  
Insect Pests ◽  
Egg Parasitoid ◽  
Contact Toxicity ◽  
Trichogramma Chilonis ◽  
Lepidopteran Insect ◽  
Metarhizium Rileyi ◽  
Sublethal Doses ◽  
The One ◽  
Harmful Effects ◽  
Dry Film

Abstract Integration of insecticides and biological controls is an important tactic of Integrated Pest Management (IPM). Trichogramma chilonis is a promising natural enemy of many lepidopteran insect pests. However, this hymenopteran egg parasitoid is adversely affected by most insecticides. Contact toxicity of nineteen insecticides and three biopesticides on adults of T. chilonis was investigated by using dry film residue bioassays under laboratory conditions. Profenofos and chlorpyrifos were highly lethal to the adults even at sublethal doses followed by dimethoate, spinosad, indoxacarb and acephate + imidacloprid. Diafenthiuron, nimbecidine and flubendiamide were categorised as less toxic. The biopesticides viz., Metarhizium anisopliae, Beauveria bassiana and Metarhizium rileyi were found innocuous to T. chilonis. The studysuggests that the insecticides with less toxicity and biopesticides with apparently no harmful effects on the parasitoid can be used in conjunction with parasitoids in IPM programmes. This will also advice the plant protectionists in avoiding the one with detrimental effects on this hymenopteran wasp with appropriate timing of application that controls the pests without adversely affecting their natural enemies

scholarly journals Gene Characterization and Enzymatic Activities Related to Trehalose Metabolism of In Vitro Reared Trichogramma dendrolimi Matsumura (Hymenoptera: Trichogrammatidae) under Sustained Cold Stress

Insects ◽  
2020 ◽  
Vol 11 (11) ◽  
pp. 767
Author(s):  
Xin Lü ◽  
Shi-chou Han ◽  
Zhi-gang Li ◽  
Li-ying Li ◽  
Jun Li
Keyword(s):  
Cold Tolerance ◽  
Enzyme Activities ◽  
Low Temperatures ◽  
Insect Pests ◽  
Egg Parasitoid ◽  
Threshold Temperature ◽  
Gene Expressions ◽  
Gene Characterization ◽  
Trichogramma Dendrolimi

Trichogramma spp. is an important egg parasitoid wasp for biocontrol of agriculture and forestry insect pests. Trehalose serves as an energy source or stress protectant for insects. To study the potential role of trehalose in cold resistance on an egg parasitoid, cDNA for trehalose-6-phosphate synthase (TPS) and soluble trehalase (TRE) from Trichogramma dendrolimi were cloned and characterized. Gene expressions and enzyme activities of TdTPS and TdTRE were determined in larvae, prepupae, pupae, and adults at sustained low temperatures, 13 °C and 16 °C. TdTPS and TdTRE expressions had similar patterns with higher levels in prepupae at 13 °C and 16 °C. TdTPS enzyme activities increased with a decrease of temperature, and TdTRE activity in prepupae decreased sharply at these two low temperatures. In vitro reared T. dendrolimi could complete entire development above 13 °C, and the development period was prolonged without cold injury. Results indicated trehalose might regulate growth and the metabolic process of cold tolerance. Moreover, 13 °C is the cold tolerance threshold temperature and the prepupal stage is a critical developmental period for in vitro reared T. dendrolimi. These findings identify a low cost, prolonged development rearing method, and the cold tolerance for T. dendrolimi, which will facilitate improved mass rearing methods for biocontrol.

Three New Lepidopteran Insect Pests of Persimmon Leaf in Korea

2015 ◽  
Vol 54 (2) ◽  
pp. 111-114 ◽  
Author(s):  
Sung Yeon Kim ◽  
◽  
Jeong-Min Kim ◽  
Miyeon Jang ◽  
Sin Ae Jang ◽  
...  
Keyword(s):  
Insect Pests ◽  
Lepidopteran Insect ◽  
Persimmon Leaf

scholarly journals Trichogramma chilonis, an effective egg parasitoid for control of white stem borer Scirpophaga innotata (Walker), (Lepidoptera: Pyralidae) in rice

2021 ◽  
pp. 51-60
Author(s):  
Muhammad Yousif Rahimoon ◽  
Abdul Ghani Lanja ◽  
Aslam Bukero ◽  
Babar Hussain Chang ◽  
Jamal-U-Ddin Hajano ◽  
...  
Keyword(s):  
Insect Pests ◽  
Field Studies ◽  
Stem Borer ◽  
Egg Parasitoid ◽  
Control Agent ◽  
Management Program ◽  
Trichogramma Chilonis ◽  
The World ◽  
Parasitoid Population ◽  
Lepidoptera Pyralidae

Rice an important staple food crop of the world, which is attacked by the various insect pests, among them the stem borers are the most destructive pests, distributed in all rice growing areas of the world and cause the severe losses. This research investigated the efficacy of the parasitoid Trichogramma chilonis (Ishii) to control the white stem borer (Scirpophaga innotata) in rice. In this respect the field studies were conducted in lower Sindh, Pakistan for the year, Kharif - 2017 and 2018. Trichogramma egg parasitoid over 230 species are reported to have been remained in biological control of insect pests of over 200 insect species belonging to 70 different families, mainly the order Lepidoptera, Hemiptera, Orthroptera and Thysnoptera, in order to manage the white stem borer of rice the Trichogramma chilonis (Ishii) was used as a bio-control agent. The Studies revealed that T. chilonis proved an effective biocontrol strategy against white stem borer of rice. The result of this study could be useful in an integrated pest management program for the management of white stem borer of rice the Trichogramma chilonis. Keywords: Stem borer, Biocontrol, Parasitoid, Population suppression.

scholarly journals Occurrence of Lepidopteran Insect Pests and Injury Aspects in Adzuki Bean Fields

2009 ◽  
Vol 48 (1) ◽  
pp. 29-35 ◽  
Author(s):  
Jin-Kyo Jung ◽  
Bo-Yoon Seo ◽  
Jum-Rae Cho ◽  
Yun-Hee Kwon ◽  
Gil-Ha Kim
Keyword(s):  
Insect Pests ◽  
Adzuki Bean ◽  
Lepidopteran Insect
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