Parasitoid complex of black scale Saissetia oleae on citrus and olives: parasitoid species composition and seasonal trend

BioControl ◽  
2007 ◽  
Vol 53 (3) ◽  
pp. 473-487 ◽  
Author(s):  
Alejandro Tena ◽  
Antonia Soto ◽  
Ferran Garcia-Marí
Keyword(s):  
Species Composition ◽  
Seasonal Trend ◽  
Parasitoid Species ◽  
Parasitoid Complex ◽  
Black Scale ◽  
Saissetia Oleae

Changes in Numbers in the Parasitoid Complex Associated With the Diamond-Back Moth, Plutella Xylostella (L.) (Lepidoptera), in Victoria.

1979 ◽  
Vol 27 (6) ◽  
pp. 981 ◽  
Author(s):  
S Goodwin
Keyword(s):  
High Temperatures ◽  
Plutella Xylostella ◽  
Winter Period ◽  
Parasitoid Species ◽  
Primary Parasitoid ◽  
Parasitoid Complex ◽  
Larval Parasitoids ◽  
Pesticide Treatment ◽  
Drought Conditions ◽  
Rate Of Recovery

Between 1972 and 1974, a study was made of parasitoids of P. xylostella naturally infesting four successive crops of cabbages which had not received any pesticide treatment. Parasitism fluctuated in each crop, averaging 49% during the study. The major parasitoid species were Diadegma cerophaga, Thyraeella collaris and Diadegma rapi, which averaged 93% of parasitism over the study period. Six minor primary parasitoid and one hyperparasite species were also recorded. Parasitoid activity was high during spring and summer, although extremely high temperatures during summer reduced numbers of both the host and its parasitoids. Drought conditions accentuated this. Parasitism in autumn depended upon the severity of this depletion and on the ensuing rate of recovery. The more important larval parasitoids were closely synchronized with host numbers, with a distinct lag during the winter period.

scholarly journals Flight period of some parasitoids and a predator of the olive black scale (Saissetia oleae Olivier) on Corfu island

2017 ◽  
Vol 5 ◽  
pp. 43 ◽  
Author(s):  
Μ. V. Macropodi
Keyword(s):  
Natural Enemies ◽  
The Other ◽  
Flight Period ◽  
Chilocorus Bipustulatus ◽  
Black Scale ◽  
Saissetia Oleae ◽  
Time Of Year

The time of year the adults (flight period) of the parasitoids of S. oleae: Μetaphycus helvolus, Μetaphycus lounsburyi, Scutelista cyanea and Moranila californica and the predator Chilocorus bipustulatus are present, was determined in three areas of Corfu island: Lima, Kontocali and Avliotes. M. helvolus apparently has two flight periods: the first is from A­pril till July and the second from November till December. All the other natural enemies have only one flight period per year. The flight period of M. lounsburyi is from April till August, while S. cyanea flies from August till the end of September or the first days of Oc­tober, and M. californica adults are present from July till the middle of December. Adults of C. bipustulatus appeared from July till December or the middle of January.

scholarly journals Ocorrência da Cochonilha Negra Saissetia oleae (Olivier) (Hemiptera: Coccidae) em Oliveiras Olea europaea L. (Oleaceae) cv. Ascolano em Diamantina, Minas Gerais, Brasil

2013 ◽  
Vol 6 (3) ◽  
pp. 242-244
Author(s):  
Marcus Alvarenga Soares ◽  
Maria do Céu Monteiro Da Cruz ◽  
Larissa Madureira Martins ◽  
Raoni Pereira De Carvalho ◽  
Evaldo Martins Pires ◽  
...  
Keyword(s):  
Olea Europaea ◽  
Minas Gerais ◽  
Global Market ◽  
Severe Damage ◽  
Olea Europaea L ◽  
Minas Gerais State ◽  
Black Scale ◽  
Saissetia Oleae ◽  
Production Losses ◽  
Olea Europaéa

Plantas de oliveira Olea europaea L. (Oleaceae) foram introduzidas no município de Diamantina, Minas Gerais, Brasil devido ao potencial local para produzir azeitonas e azeite, fruto e processado com mercado mundial em expansão. O objetivo deste trabalho foi registrar, pela primeira vez, a presença da cochonilha negra, Saissetia oleae (Olivier) (Hemiptera: Coccidae), em oliveiras (cv. Ascolano) em Diamantina. O presente registro mostra que S. oleae precisa ser monitorada, quando da implantação de viveiros de mudas e áreas de cultivo nesta região, por ter potencial para causar danos severos nas plantas e perdas na produção. Occurrence of Black Scale Saissetia oleae (Hemiptera: Coccidae) in Olive Olea europaea (Oleaceae) cv. Ascolano in Diamantina, Minas Gerais State, Brazil. Abstract. Olive plants Olea europaea L. (Oleaceae) were introduced in the Diamantina region, Minas Gerais State, Brazil mainly because it is a potential place to produce olives and olive oil, with growing global market. The aim of this study was to record the presence of black scale Saissetia oleae (Olivier) (Hemiptera: Coccidae) on olive (cv. Ascolano) in Diamantina. This record shows that S. oleae needs to be monitored when deploying nurseries and crop areas for its potential to cause severe damage in plants and production losses.

Seasonal trends, sampling plans and parasitoid complex of the Chinese wax scale, Ceroplastes sinensis Del Guercio (Hemiptera: Coccidae), in Mediterranean citrus groves

2014 ◽  
Vol 105 (1) ◽  
pp. 70-81 ◽  
Author(s):  
M.T. Martínez-Ferrer ◽  
J.M. Campos-Rivela ◽  
M.J. Verdú
Keyword(s):  
Target Population ◽  
First Record ◽  
Abundant Species ◽  
Population Densities ◽  
Parasitoid Species ◽  
Egg Hatching ◽  
Sampling Plans ◽  
Seasonal Trends ◽  
Parasitoid Complex ◽  
Citrus Groves

AbstractSeasonal trends and the parasitoid complex of Chinese wax scale (Ceroplastes sinensis) was studied from July 2010 to February 2013. Six commercial citrus groves located in northeastern Spain were sampled fortnightly. Chinese wax scale completed a single annual generation. Egg oviposition started in May and continued until mid-July. Egg hatching began in mid-June, and in the first quarter of August, the maximum percentage of hatched eggs was reached. In the same groves, the parasitoid species of C. sinensis were determined together with their seasonal trends, relative abundance and occurrence on C. sinensis. Four hymenoptera were found parasitizing C. sinensis, mainly on third instars and females: Coccophagus ceroplastae (Aphelinidae), Metaphycus helvolus (Encyrtidae), Scutellista caerulea (Pteromalidae) and Aprostocetus ceroplastae (Eulophidae). The most abundant species was A. ceroplastae, corresponding to 54% of the parasitoids emerged. Coccophagus ceroplastae and M. helvolus represented 19%, whereas S. caerulea comprised 8% of the total. This study is the first published record of C. ceroplastae in Spain and the first record of M. helvolus on C. sinensis in Spain. Concerning the economical thresholds normally used, sampling plans developed for the management of C. sinensis in citrus groves should target population densities of around 12–20% of invaded twigs, equivalent to 0.2–0.5 females per twig. The sample size necessary to achieve the desired integrated pest management precision is 90–160 twigs per grove for the enumerative plan and about 160–245 twigs per grove for the binomial plan.

scholarly journals Parasitoid complex of leaf miner Pyllonorycter comparella (Lepidoptera, Gracillariidae) in Hungary

2015 ◽  
Vol 11 (2) ◽  
pp. 91-98 ◽  
Author(s):  
Levente Szőcs ◽  
George Melika ◽  
Csaba Thuróczy ◽  
György Csóka
Keyword(s):  
Dominant Species ◽  
Leaf Miner ◽  
Species Assemblages ◽  
Parasitoid Species ◽  
Parasitoid Complex ◽  
Hungarian Literature

Abstract Between 2011 and 2014, 1,154 mines of Phyllonorycter comparella (Duponchel) were collected at 12 locations in Hungary and were put into single-mine rearing containers. A total of 574 parasitoid specimens belonging to 29 parasitoid species (26 Chalcididae, 2 Encyrtidae and 1 Braconidae) emerged. Of these species, 13 have not yet been mentioned in either international or in Hungarian literature as a parasitoid of the P. comparella. The species assemblages of the parasitoid complexes varied greatly among the sample sites. The primary dominant species of the total samples was found to be Sympiesis sericeicornis (Nees), an abundant idiobiont solitary ectoparasitoid. Among the species reared, we have found specialist parasitoids such as Achrysocharoides scaposa (Erdős) and even species never recorded from Populus (Zagrammosoma variegatum (Masi)) according to the Universal Chalcidoidea Database.

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