scholarly journals Effect of parasitoid competition, ant exclusion and carbohydrate sources on biological control fo Saissetia oleae on olive trees = Efecto de la competición de los parasitoides, la exclusión de hormigas y las fuentes de hidratos de carbono en el control biológico de Saissetia oleae en olivos

2017 ◽  
Author(s):  
Rosalina Martins Marrao
Keyword(s):  
Biological Control ◽  
Saissetia Oleae ◽  
Olive Trees

scholarly journals Coccophagus scutellaris(Hymenoptera: Aphelinidae): A Highly Effective Biological Control Agent of Soft Scale Insects (Hemiptera: Coccidae) in Egypt

2011 ◽  
Vol 2011 ◽  
pp. 1-6 ◽  
Author(s):  
Shaaban Abd-Rabou
Keyword(s):  
Biological Control ◽  
Maximum Rate ◽  
Biological Control Agent ◽  
Control Agent ◽  
The Other ◽  
Scale Insects ◽  
Northern Coast ◽  
Soft Scale ◽  
Coccus Hesperidum ◽  
Saissetia Oleae

About 953000 individuals of the cosmopolitan parasitoid,Coccophagus scutellaris(Dalman) (Hymenoptera: Aphelinidae), were released and evaluated during 2009-2010 for the control of the following soft scale insects (Hemiptera: Coccidae) infesting the following economic crops in Egypt:Ceroplastes ruscion citrus in Beni Seuf,Ceroplastes floridensisComstock on citrus in Gharbiya,Coccus hesperidumL. on guava in Giza,Pulvinaria floccifera(Westwood) on mango in Sharqiya,Pulvinaria psidiiMaskell on mango in Ismailia,Saissetia coffeae(Walker) on olive in Marsa Matruh, andSaissetia oleae(Oliver) on olive in the Northern Coast. The population ofC. scutellarisshowed a significant correlation with the build up of the population of the soft scale insects population in all of the release sites studied. The maximum rate of parasitism of the other species of parasitoids associated with soft scale insects at the release sites decreased after the release ofC. scutellaris.

scholarly journals A biological control model to manage the vector and the infection of Xylella fastidiosa on olive trees

PLoS ONE ◽  
2020 ◽  
Vol 15 (4) ◽  
pp. e0232363 ◽  
Author(s):  
Antonella Liccardo ◽  
Annalisa Fierro ◽  
Francesca Garganese ◽  
Ugo Picciotti ◽  
Francesco Porcelli
Keyword(s):  
Biological Control ◽  
Xylella Fastidiosa ◽  
Control Model ◽  
Olive Trees

Saissetia oleae (Oliv.) (Hom., Coccidae) and its parasites on olive trees in Crete, Greece

2009 ◽  
Vol 90 (1-5) ◽  
pp. 450-464 ◽  
Author(s):  
M. Paraskakis ◽  
P. Neuenschwander ◽  
S. Michelakis
Keyword(s):  
Saissetia Oleae ◽  
Olive Trees

scholarly journals Life history and population dynamics of Aspidiotus nerii (Bouche, 1833), Homoptera: Diaspididae, Saissetia oleae (Olivier, 1751), Homoptera: Lecanidae and Pollinia pollini (Costa, 1857), Homoptera: Asterolecanidae on olive trees in the Blida Region (Algeria)

2020 ◽  
Vol 10 (5) ◽  
pp. 62-68
Author(s):  
Guessab Asmaa ◽  
M. Biche ◽  
M. Biche
Keyword(s):  
Developmental Stages ◽  
Climatic Factors ◽  
Abundant Species ◽  
High Rate ◽  
Two Generations ◽  
Aspidiotus Nerii ◽  
Saissetia Oleae ◽  
Olive Trees ◽  
Cycle Monitoring ◽  
Population Counts

The work consists of a study on the level of infestation of the 3 species of olive-infused mealybugs at the two stations (Soumaa and Guerrouaou) in the Blida région, with particular attention to the évolution of Pollinia pollini (Asterolecanidae), Octaspidiotus nerii (Diaspididae) and Saissetia oleae (Lecanidae). Unlike the Soumaa station, there is a large infestation in the Guerrouaou station by the three (most abundant) species with a high rate. The life cycle monitoring and the bio-ecology of these three pests were carried out through periodic population counts on the leaves and twigs of the tree from 08 August 2016 to 29 May 2017 in the wilaya of Blida. It appears that the study of the biology of P.pollini evolves in 2 annual generations (the first is the spring generation; the second is through the summer. The larval stage remains the most abandoned compared to other developmental stages. The South orientation seems the most affectionate by P.pollini. We can conclude that O .nerii has two generations « spring and automne » depending on climatic factors. The East and West exposure represent the places most sought after by this scale where we found a relative abundance between larvae and adult females. S. oleae develops only one generation per year (automnal génération). Females are the most abundant in Soumaa station and larvae in Guerrouaou station. The eastern orientation and the automne season are the most favourable for the development of the mealybug.

scholarly journals Insects related to Olive culture in Rio Grande do Sul State, Brazil

2015 ◽  
Vol 45 (12) ◽  
pp. 2125-2130 ◽  
Author(s):  
Marcelo Perrone Ricalde ◽  
Dori Edson Nava ◽  
Alci Enimar Loeck ◽  
Enilton Fick Coutinho ◽  
Alexandre Bisognin ◽  
...  
Keyword(s):  
Rio Grande ◽  
Phytophagous Insects ◽  
Rio Grande Do Sul ◽  
Potential Production ◽  
Insect Fauna ◽  
Olive Groves ◽  
Saissetia Oleae ◽  
Lepidoptera Pyralidae ◽  
Olive Trees ◽  
First Time

The increased cultivation of olive trees in Rio Grande do Sul State and its potential production arouse the need to characterize the assemblage of insects in olive groves, especially those with potential as pests. Therefore, the insect fauna was sampled monthly for two years, in the canopy of olive trees, using beat cloth, and collection of buds in five municipalities in Southern Rio Grande do Sul State. The faunal indices analyzed were abundance, constancy, dominance and frequency. The olive caterpillar Palpita forficifera Munroe 1959 (Lepidoptera: Pyralidae) and mealybugs Saissetia oleae (Olivier, 1791) and Saissetia coffeae (Walker, 1952) (Hemiptera: Coccidae) are the main phytophagous insects in olive farms in the Rio Grande do Sul State, with potential to reach pest status. Eleven insect species were recorded for the first time in olive groves in Brazil. The occurrence of P. forficifera is a new record for the Rio Grande do Sul State.

scholarly journals Current and planned research for managing the risk of Xylella fastidiosa to New Zealand

2019 ◽  
Vol 72 ◽  
pp. 284
Author(s):  
Sandra B. Visnovsky ◽  
Robert K. Taylor ◽  
David A.J. Teulon
Keyword(s):  
Risk Assessment ◽  
Biological Control ◽  
New Zealand ◽  
Xylella Fastidiosa ◽  
Native Plant ◽  
Homalodisca Vitripennis ◽  
Native Plant Species ◽  
Italian Peninsula ◽  
Olive Trees ◽  
The Impact

Xylella fastidiosa (Xf), a xylem-limited bacterium native to the Americas, has a devastating impact on many crops internationally. In California, Xf causes over USD 100 million in yearly losses to the grape industry and infects an estimated 200 million citrus trees in Brazil. More recently, Xf killed around one million olive trees on the Italian peninsula of Salento. Xylella fastidiosa is not known to be present in New Zealand. The glassy-winged sharpshooter (Homalodisca vitripennis), an important vector of Xf in California, is also not present in New Zealand. However, the meadow spittle bug (Philaenus spumarius), an important vector of Xf in Italy, is present. Many economically important horticultural, viticultural, agricultural, amenity and indigenous/native plant species, including taonga, are likely to be susceptible to Xf. Aspects of our research on Xf to understand the impact, reduce the likelihood of entry into New Zealand and/or minimising its impact in New Zealand will be presented. The research listed on the poster spans risk assessment, diagnostics, surveillance and biological control but could certainly be increased across the biosecurity continuum given the magnitude of the threat from Xf to New Zealand’s valuable plant systems.

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