scholarly journals Integrated Pest Management of Lobesia botrana with Microorganism in Vineyards: An Alternative for Clean Grapes Production

2021 ◽  
Author(s):  
Fabiola Altimira ◽  
Nancy Vitta ◽  
Eduardo Tapia

The moth Lobesia botrana (Denis and Schiffermüller) (Lepidoptera: Tortricidae) is one of the principal pests of the grapevines (Vitis vinifera L.). His larvae feeds from grape, reducing production and increasing susceptibility to fungal infections. This makes it one of the most economically important pest insects in wine and table grape exporting countries. This chapter will describe the distribution, biology, and behavior of L. botrana regarding its host, the grapevine, along with its control via the use of natural enemies, entomopathogenic microorganisms, MD (mating disruption) and chemical control. Finally, we will describe an integrated management strategy based on monitoring, MD, and biological control using entomopathogenic microorganisms. This strategy could be useful as a basis for integrated pest control plans in various regions worldwide.


Insects ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 220
Author(s):  
Jo Marie Reiff ◽  
Sebastian Kolb ◽  
Martin H. Entling ◽  
Thomas Herndl ◽  
Stefan Möth ◽  
...  

Habitat simplification and intensive use of pesticides are main drivers of global arthropod declines and are, thus, decreasing natural pest control. Organic farming, complex landscapes, and local vineyard management practices such as implementation of flower-rich cover-crop mixtures may be a promising approach to enhance predator abundance and, therefore, natural pest control. We examined the effect of organic versus integrated management, cover-crop diversity in the vineyard inter-rows, and landscape composition on the natural pest control of Lobesia botrana eggs and pupae. Predation of L. botrana pupae was reduced by organic farming and species-poor cover-crops by about 10%. Predation rates of L. botrana eggs did not differ significantly in any of the studied management options. Dominant predators were earwigs (Forficulidae), bush crickets (Tettigoniidae), and ants (Formicidae). Negative effects of organic viticulture are most likely related to the negative nontarget effects on arthropods related to the frequent sulfur and copper applications in combination with the avoidance of strongly damaging insecticides by integrated winegrowers. While a 10% difference in predation rates on a single pest stage is unlikely to have strong practical implications, our results show that the assumed effectiveness of environmentally friendly agriculture needs to be evaluated for specific crops and regions.



Examples of and methods for achieving the selective use of pesticides in control of pests while conserving important beneficial natural enemies are discussed relative to the development of integrated pest management systems for apples in the U.S.A. Included are examples of physiologically selective acaricides, ecological selectivity conferred by application techniques and selectivity due to the development of resistant beneficial insects. A definition and examples of ideal selectivity of pesticides for this crop production system are discussed. Lastly, an approach to resistance management in an entire apple arthropod pest - natural enemy complex is discussed in relation to a long-used chemical control system (organophosphate pesticides) compared with a new chemical control programme based on pyrethroid insecticides.







Plant Science ◽  
2016 ◽  
Vol 244 ◽  
pp. 40-56 ◽  
Author(s):  
Sara Domingos ◽  
Joana Fino ◽  
Octávio S. Paulo ◽  
Cristina M. Oliveira ◽  
Luis F. Goulao


Author(s):  
Huanhuan Cai ◽  
Tao Zhang ◽  
Yinghua Su ◽  
Zhongyue Wang ◽  
Xiaofang Zhang ◽  
...  

Abstract In recent years, Protaetia brevitarsis Lewis has gradually become an important pest of several crops including grape (Vitis vinifera L.) and peach (Amygdalus persica L.) in Xinjiang, China. Toward improving trapping efficacy as part of a management program, various colors, types, and placement of traps and the use of an attractant were evaluated in field and laboratory studies. Laboratory color-choice tests and field tests indicated that P. brevitarsis adults preferred red. In trap placement tests, more adults were captured on traps placed 1 or 1.5 m above the ground and on top of the horizontal grape canopy. Before grape ripening, more adults were captured in traps placed in a 0.5-m border around the outside edge of the vineyard; during grape ripening, more were caught within the vineyard. Newly designed traps that were red, with a triangular baffle and a landing plate, were more efficient than traditional bucket-shaped traps. When P. brevitarsis adults were trapped and killed from June to July 2018, the population of P. brevitarsis adults in August to early September 2018 was significantly lower than in August to early September 2017, when adults had not been trapped and killed in the prior 2 mo.



1985 ◽  
Vol 42 (3) ◽  
pp. 488-493 ◽  
Author(s):  
Ernest J. Mellas ◽  
James M. Haynes

Implicit in biotelemetry studies is the assumption that transmitter attachment does not affect fish behavior or performance. We conducted experiments to determine effects of external, surgical, and stomach tag attachments on the swimming performance and behavior of rainbow trout (Salmo gairdneri) and white perch (Morone americana). Only one rainbow trout changed dominance rank after dummy tag attachment. Subordinate fish had significantly lower weights than subdominant and dominant fish, but there were no significant differences in exhaustion times. Externally tagged trout had significantly lower exhaustion times than other tagged groups and controls. There was no significant difference in exhaustion times among tagged white perch and controls. Externally and surgically tagged perch contracted serious fungal infections during a 45-d survival study; however, few disease and no survival problems among tagged and untagged rainbow trout were noted up to 21 d. With all factors taken into account, it appears that stomach tagging is the best method of transmitter attachment, except when regurgitation and/or stomach atrophy are likely to be encountered.



Plant Science ◽  
2018 ◽  
Vol 274 ◽  
pp. 223-230 ◽  
Author(s):  
Itay Maoz ◽  
Rachel Davidovich Rikanati ◽  
Daniel Schlesinger ◽  
Einat Bar ◽  
Itay Gonda ◽  
...  


2017 ◽  
Vol 2017 ◽  
pp. 1-18 ◽  
Author(s):  
Laura Yêyinou Loko ◽  
Obédatou Alagbe ◽  
Elie A. Dannon ◽  
Benjamin Datinon ◽  
Azize Orobiyi ◽  
...  

Dinoderus porcellusis considered as the most important pest of stored yam chips and compounds extracted from plants can be used for its control. The present study aimed to test the insecticidal and repellent activities of powders and extracts of leaves ofBridelia ferruginea,Blighia sapida, andKhaya senegalensisagainstD. porcellus. The efficacy of plant powders was compared with the synthetic pesticide Antouka (Permethrin 3 g/kg + pirimiphos 16 g/kg). The results of the experiment revealed that all plant powders were effective as repellents. Antouka was more effective as insecticidal than the plant powders and minimal weight loss was observed withB. sapidaat 2%. Among treatments, propanol extract ofK. senegalensisat 5% was found to elicit the highest repellent effect onD. porcellus. The LC50results revealed that the acetone extract ofK. senegalensisis the most toxic (0.29 μL/insect) to the pest, while the propanol extract ofB. ferrugineaat 5% exhibited strong fumigant toxicity againstD. porcellus, with 88.89% of pest mortality at 160 μL/L air. The findings from the current work proved that plant powders and extracts of the three plants are sources of botanical insecticides which may be used in the integrated management ofD. porcellus.



2014 ◽  
Vol 11 (1) ◽  
Author(s):  
Iván Carreño ◽  
José Antonio Cabezas ◽  
Celia Martínez-Mora ◽  
Rosa Arroyo-García ◽  
José Luis Cenis ◽  
...  


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