Bio-efficacy of Heterorhabditis bacteriophora (Rhabditida: Heterorhabditidae) against serpentine leafminer, Liriomyza trifolii Burgess (Diptera: Agromyzidae) in oilseed crops

2019 ◽  
Vol 33 (2) ◽  
pp. 169-172
Author(s):  
B. GAYATRI ◽  
P. DURAIMURUGAN ◽  
◽  
Keyword(s):  
Heterorhabditis Bacteriophora ◽  
Liriomyza Trifolii ◽  
Oilseed Crops ◽  
Serpentine Leafminer

Differential Probing Response of Serpentine Leafminer, Liriomyza trifolii (Burgess), on Cos Lettuce

1994 ◽  
Vol 29 (3) ◽  
pp. 330-338 ◽  
Author(s):  
Gregg S. Nuessly ◽  
Russell T. Nagata
Keyword(s):  
Lactuca Sativa ◽  
Leaf Surface ◽  
The Other ◽  
Leafy Vegetables ◽  
Liriomyza Trifolii ◽  
Romaine Lettuce ◽  
Lactuca Sativa L ◽  
Leaf Mining ◽  
Choice Tests ◽  
Serpentine Leafminer

Leaf mining damage by serpentine leafminers, Liriomyza trifolii (Burgess) (Diptera: Agromyzidae), is a major problem of many leafy vegetables especially lettuce. A hierarchy of leaf probing preference by L. trifolii on romaine lettuce (Lactuca sativa L.) cultivars ‘Floricos 83’ (FC), ‘Parris Island Cos’ (PI), ‘Tall Guzmaine’ (TG), and ‘Valmaine’ (VL) was determined. Based on stipple counts (puncture wounds in the leaf surface), L. trifolii preferred TG by an experiment-wide average of 3:1 over the other cultivars. In choice tests where L. trifolii were able to select their preferred cultivar, TG was preferred 2.2:1 to 5.5:1 over the over varieties. On 12-leaf stage TG plants, eight female flies produced means ± SEM of 664.2 ± 165.8, 1,581.8 ± 333.8, and 2,084.5 ± 242.6 stipples per plant after 24, 48, and 72 h exposures, respectively. Preference for TG was maintained in no-choice tests where TG was preferred 1.8:1 to 2.6:1 over the other cultivars. Stipple counts on FC, PI, and VL did not vary significantly between choice and no-choice tests, but nearly twice as many stipples per plant were found on TG in choice than in no-choice tests. More probing occurred on all cultivars on the youngest fully expanded leaves in the middle of the plants than on leaves toward the bottom or top of the plants. Preference for these middle leaves was more pronounced on TG than on the other cultivars. The differences in stipple rates followed the pedigrees of the cultivars tested. The character(s) preferred by L. trifolii were apparently introduced into the lineage with a cross to ‘Paris White.’

scholarly journals Seasonal Abundance and Spatial Pattern of Distribution of Liriomyza trifolii (Diptera: Agromyzidae) and Its Parasitoid on Bean and Squash in South Florida

2021 ◽  
Author(s):  
Shashan Devkota ◽  
Dakshina R. Seal
Keyword(s):  
Insect Pest ◽  
Ornamental Plants ◽  
South Florida ◽  
Seasonal Abundance ◽  
Liriomyza Trifolii ◽  
Snap Bean ◽  
Wide Range ◽  
The Mean ◽  
Serpentine Leafminer ◽  
Polyphagous Insect

ABSTRACTAmerican serpentine leafminer, Liriomyza trifolii, is a polyphagous insect pest that feeds on a wide range of vegetable and ornamental plants around the world. To develop an effective IPM program, information on the seasonal field distribution and population dynamics of leafminer and its parasitoids is very important. Therefore, seasonal abundances and spatial distributions of, L. trifolii on snap bean and squash were studied during four crop growing periods between 2013 to 2015 in Homestead, Florida. The mean numbers of mines, larvae, pupae, emerged adults, and parasitoids on snap bean were highest at 2 weeks after planting during all four growing periods. Whereas, the mean numbers of mines, larvae, pupae, emerged adults, and parasitoids on squash were highest at 3 weeks after planting during all four growing periods. L. trifolii distributions tended to be aggregated (1 < b/β) on snap bean at 2 weeks after planting during all four growing periods but had uniform (1 > b/β) distributions on squash at 2 weeks after planting during all four growing periods. Similar results were seen on the distribution of leafminer parasitoids on both bean and squash.

scholarly journals Plant Extracts and Pesticides for the management of the American Serpentine Leafminer (Liriomyza trifolii)

2020 ◽  
Vol 7 (2) ◽  
pp. 144-147
Author(s):  
Luan Italo Rebouças Rocha ◽  
Dirceu Pratissoli ◽  
Alixelhe Pacheco Damascena ◽  
Luis Moreira de Araujo Júnior ◽  
José Romário de Carvalho ◽  
...  
Keyword(s):  
Plant Extracts ◽  
Liriomyza Trifolii ◽  
Serpentine Leafminer
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