Seasons of the year affect critical stage and key mortality factors for Neoleucinodes elegantalis in open field tomatoes

2018 ◽  
Vol 174 (2) ◽  
pp. 133-141
Author(s):  
Ézio M. da Silva ◽  
Ricardo S. da Silva ◽  
Laércio J. da Silva ◽  
Pablo da Costa Gontijo ◽  
Tarcísio V. da Silva Galdino ◽  
...  
Keyword(s):  
Open Field ◽  
Mortality Factors ◽  
Critical Stage ◽  
Key Mortality Factors

Natural factors regulating mustard aphid dynamics in cabbage

2018 ◽  
Vol 109 (3) ◽  
pp. 325-332 ◽  
Author(s):  
E.G. Fidelis ◽  
E.S. Farias ◽  
R.S. Silva ◽  
M.C. Lopes ◽  
N.R. Silva ◽  
...  
Keyword(s):  
Control Measures ◽  
Lipaphis Erysimi ◽  
Mortality Factors ◽  
Negative Effects ◽  
Critical Stage ◽  
Mustard Aphid ◽  
Nymphal Stage ◽  
Natural Factors ◽  
Key Factor ◽  
Key Mortality Factors

AbstractLipaphis erysimi (L.) Kaltenbach (Hemiptera: Aphididae) is one of the most important pests of brassica crops, mainly causing losses due to sap sucking, toxin injection and viral transmission. Knowledge about the main natural factors that regulate populations of this pest, as well as its critical mortality stage, is crucial for the development of integrated pest management of L. erysimi. Here, we determined the critical stage and key mortality factors for L. erysimi in cabbage using an ecological life table. Causes of mortality at each stage of L. erysimi development were monitored daily in the field for seven seasons. From the experimental data, we determined the key factor and critical stage of mortality through correlation and regression analyses. The nymphal stage, especially first instar nymphs, was critical for L. erysimi mortality. The key mortality factors were, in descending order of importance, physiological disturbances and predation by Syrphidae, Coccinellidae and Solenopsis ants. Therefore, control measures should target early stages of L. erysimi and the use of cabbage cultivars that have negative effects against L. erysimi may be a promising strategy for its management. Our results may be useful for plant geneticists who could develop new cabbage cultivars based on these findings. In addition, conservation measures of the main predators of L. erysimi may contribute to the natural control of this pest.

Field life-tables and key mortality factors of Lepidoperous pests of sunflower

2016 ◽  
Vol 40 (4) ◽  
pp. 387
Author(s):  
S.M. Jadhao ◽  
P.R. Shinde ◽  
C.G. Sawant ◽  
S.S. Shetgar
Keyword(s):  
Life Tables ◽  
Mortality Factors ◽  
Key Mortality Factors

Natural Biological Control and Key Mortality Factors of the Pickleworm,Diaphania nitidalisStoll (Lepidoptera: Pyralidae), in Cucumber

2003 ◽  
Vol 20 (4) ◽  
pp. 365-380 ◽  
Author(s):  
Alfredo Henrique Rocha Gonring ◽  
Marcelo Coutinho Picanço ◽  
José Cola Zanuncio ◽  
Mario Puiatti ◽  
Altair Arlindo Semeão
Keyword(s):  
Biological Control ◽  
Mortality Factors ◽  
Lepidoptera Pyralidae ◽  
Key Mortality Factors

scholarly journals Natural mortality factors of tomato leafminer Tuta absoluta in open-field tomato crops in South America

2018 ◽  
Vol 75 (3) ◽  
pp. 736-743 ◽  
Author(s):  
Leandro Bacci ◽  
Ézio M Silva ◽  
Gerson A Silva ◽  
Laércio J Silva ◽  
Jander F Rosado ◽  
...  
Keyword(s):  
South America ◽  
Open Field ◽  
Tuta Absoluta ◽  
Natural Mortality ◽  
Mortality Factors ◽  
Tomato Leafminer

scholarly journals Coccinellidae, Syrphidae and Aphidoletes are key mortality factors for Myzus persicae in tropical regions: A case study on cabbage crops

2018 ◽  
Vol 112 ◽  
pp. 288-294 ◽  
Author(s):  
Elisângela Gomes Fidelis ◽  
Daiane das Graças do Carmo ◽  
Abraão Almeida Santos ◽  
Elizeu de Sá Farias ◽  
Ricardo Siqueira da Silva ◽  
...  
Keyword(s):  
Myzus Persicae ◽  
Mortality Factors ◽  
Tropical Regions ◽  
Key Mortality Factors
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