scholarly journals Biological Control Potential of Native Entomopathogenic Nematodes (Steinernematidae and Heterorhabditidae) against Mamestra brassicae L. (Lepidoptera: Noctuidae)

Agriculture ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 388
Author(s):  
Anna Mazurkiewicz ◽  
Dorota Tumialis ◽  
Magdalena Jakubowska

The largest group of cabbage plant pests are the species in the owlet moth family (Lepidoptera: Noctuidae), the most dangerous species of which is the cabbage moth (Mamestra brassicae L.). In cases of heavy infestation by this insect, the surface of plants may be reduced to 30%, with a main yield loss of 10–15%. The aim of the present study was to assess the susceptibility of M. brassicae larvae to nine native nematode isolates of the species Steinernema feltiae (Filipjev) and Heterorhabditis megidis Poinar, Jackson and Klein under laboratory conditions. The most pathogenic strains were S. feltiae K11, S. feltiae K13, S. feltiae ZAG11, and S. feltiae ZWO21, which resulted in 100% mortality at a temperature of 22 °C and a dosage of 100 infective juveniles (IJs)/larva. The least effective was H. megidis Wispowo, which did not exceed 35% mortality under any experimental condition. For most strains, there were significant differences (p ≤ 0.05) in the mortality for dosages between 25 IJs and 50 IJs, and between 25 IJs and 100 IJs, at a temperature of 22 °C. Statistical analysis of the effect of temperature on mortality showed that only strain H. megidis Wipsowo exhibited significant differences (p ≤ 0.05) when applied at dosages of 50 IJs and 100 IJs.

Oecologia ◽  
1988 ◽  
Vol 76 (1) ◽  
pp. 89-96 ◽  
Author(s):  
Klaus Peter Sauer ◽  
Cornelia Grüner

2022 ◽  
Author(s):  
Indra Kumar Kasi ◽  
Mohinder Singh ◽  
Kanchhi Maya Waiba

Abstract Invasive species are a major danger to agronomic and natural ecosystems, and due to environmental concerns about pesticide use, EPNs have the potential to replace larvicidal action in pest management. The goal was to see how well local isolates of Steinernema feltiae (HR1) and Heterorhabditis bacteriophora (HR2) controlled invasive species when combined with low-toxicity pesticides. HR1 + Spinosad, chlorantraniliprole produced over 90% mortality in larvae at 96 hours, while HR2 + Spinosad, chlorantraniliprole caused over 95% mortality at 96 hours. After treatment, the high dose was regarded the least hazardous technique for controlling fall armyworm. At the high dose, HR1 + Spinosad, chlorantraniliprole produced larvae death of over 100 percent at 96 hours, and HR2 + Spinosad, chlorantraniliprole caused mortality of over 97.50 percent at 96 hours, and should be considered as a least hazardous strategy for T. absoluta management. Controlling larvae mortality of above 100% at 96 hours in combination with low-toxicity insecticide dosages should be included as a least harmful technique to control T. absoluta. The results showed that these HR2 strains have high pathogenicity against T. absoluta and S. frugiperda and have potential for control in integrated approaches, causing 100 percent and 90.00 percent mortality of T. absoluta and S. frugiperda at 96 hours at the high dose as a least toxic strategy to control.


PLoS ONE ◽  
2015 ◽  
Vol 10 (7) ◽  
pp. e0132904 ◽  
Author(s):  
Xiao Wu ◽  
Xiaowei Fu ◽  
Jianglong Guo ◽  
Xincheng Zhao ◽  
Kongming Wu

Oecologia ◽  
1988 ◽  
Vol 74 (4) ◽  
pp. 515-523 ◽  
Author(s):  
Cornelia Grüner ◽  
Klaus Peter Sauer

Author(s):  

Abstract A new distribution map is provided for Mamestra brassicae (Linnaeus) [Lepidoptera: Noctuidae] Cabbage moth Highly polyphagous, attacking brassicas, peas and beans, onions potatoes and many other cultivated plants. Information is given on the geographical distribution in EUROPE, Austria, Belgium, Bulgaria, Czechoslovakia, Denmark, Finland, France, Germany, East Germany, West Hungary, Irish, Republic Italy, Malta, Netherlands, Norway, Poland, Portugal, Romania, Spain, Sweden, Switzerland, United Kingdom, Yugoslavia, AFRICA, Canary Islands, Libya, ASIA, China, India, Iran, Korea, Lebanon, Mongolia, Pakistan, Syria, Taiwan, Turkey, USSR, Armenian SSR, Azerbaijan SSR, Byelorussian SSR, Georgian SSR, Kazakh SSR, Kirghiz SSR, Latvian SSR, Moldavian SSR, Russian SFSR, Ukrainian SSR.


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