Pecan, Carya illinoinensis, a New Host Report of Yellowstriped Armyworm, Spodoptera ornithogalli (Guenee) (Lepidoptera: Noctuidae) in the Southeastern US

Yellowstriped armyworm (YSAW), Spodoptera ornithogalli, is a polyphagous pest that infests various crops, including cotton, cabbage, corn, blackberry, grape, etc. We documented egg clusters, larvae and adults of YSAW in pecan orchards in Georgia. Until now, there have been no reports of YSAW infesti...

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Bibliographic Details
Published in:Horticulturae 2024-02, Vol.10 (2), p.169
Main Authors: Acharya, Rajendra, Veerlapati, Shivakumar, Barman, Apurba K.
Format: Article
Language:English
Subjects:
Adults
Age
Carya illinoinensis
Cotton
Crops
Eggs
Fecundity
Females
Host plants
Larvae
Leaves
Life expectancy
life table
Offspring
Orchards
pecan
reproduction
Soils
Spodoptera ornithogalli
Survival
yellowstriped armyworm
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Summary:Yellowstriped armyworm (YSAW), Spodoptera ornithogalli, is a polyphagous pest that infests various crops, including cotton, cabbage, corn, blackberry, grape, etc. We documented egg clusters, larvae and adults of YSAW in pecan orchards in Georgia. Until now, there have been no reports of YSAW infesting pecan and its suitability as a host. To investigate the survival, development, and reproduction of YSAW on pecan, we used the age-stage, two sex life table. The YSAW successfully completed its lifecycle on pecan with an 82% preadult survival rate. The preadult duration and mean fecundity were 47.84 d and 1212.55 offspring per female. The population parameters, including intrinsic rate of increase (r), finite rate of increase (λ), net reproduction rate (R0), and mean generation time (T) were 0.1184 d−1, 1.1257 d−1, 430.67 offspring/female, and 51.05 d, respectively. This study confirms that pecan, Carya illinoinensis, is a potential host plant of YSAW and perhaps more widespread damage could be observed.
ISSN:2311-7524
2311-7524
DOI:10.3390/horticulturae10020169