J Pest Sci (2018) 91:625–637
Density and phenology of the invasive mealybug Delottococcus
aberiae on citrus: implications for integrated pest management
· Jesica Pérez‑Rodríguez
· Alejandro Tena
· Antonia Soto
Received: 7 July 2017 / Revised: 10 October 2017 / Accepted: 16 October 2017 / Published online: 26 October 2017
© Springer-Verlag GmbH Germany 2017
results will improve the sampling protocols and allow for
the development of an integrated pest management program.
Keywords Corrugated and sticky traps · Life cycle ·
Sampling protocols · D. aberiae · Citrus
Delottococcus aberiae is a new invasive citrus pest in
Europe and its biology is unknown.
This work aims to study the density of developmental
stages of D. aberiae throughout the year.
Different sampling methods showed that D. aberiae
completes several generations. Two of them are clearly
deﬁned and result in high population levels.
These results are the ﬁrst seasonal population trend of
D. aberiae in citrus and may serve as a basis for an inte-
grated pest management program.
The globalization process and the increase in the interna-
tional trade of ornamental and crop plants have led to an
exponential rise in the introduction and establishment of
alien and invasive insects in Europe (Pellizzari and Ger-
main 2010; Pellizzari and Porcelli 2014; Roques et al.
2009). Mealybugs (Hemiptera: Pseudococcidae) are the
second most diverse family of scale insects (Coccoidea),
comprising around 2000 species distributed worldwide and
including many agricultural and ornamental pests which can
cause substantial damage (Ben-Dov 1994; García-Morales
et al. 2016; Hardy et al. 2008). Due to their small size and
Abstract Delottococcus aberiae De Lotto (Hemiptera:
Pseudococcidae) is a new invasive citrus pest in Spain. It
causes severe fruit distortions and, as a new invasive mealy-
bug, there is a lack of information about its biology. This
research aims to examine the seasonal trend of D. aberiae
in citrus, using several sampling methods, as a ﬁrst step to
develop an integrated pest management program. Ten citrus
orchards from Eastern Spain were periodically sampled dur-
ing three years using absolute (plant material) and relative
(corrugated cardboard band traps and sticky traps) sampling
methods. The three sampling methods showed that D. abe-
riae completes multiple generations per year, two of them
being clearly deﬁned and resulting in high populations. D.
aberiae peaked between May and June, damaging the devel-
oping fruit. Corrugated cardboard band traps were able to
detect prepupa and pupa male instars and gravid females,
providing a quantitative measurement of D. aberiae density
at its ﬁrst population peak. The use of corrugated cardboard
band traps is recommended to monitor population levels and
sticky traps to determine male ﬂight periods, representing
simple sampling techniques to monitor D. aberiae. These
Communicated by A.R. Horowitz.
* Antonia Soto
Instituto Agroforestal Mediterráneo (IAM), Universitat
Politècnica de València, Camino de Vera s/n,
46022 Valencia, Spain
Instituto Valenciano de Investigaciones Agrarias,
Unidad Asociada de Entomología UJI-IVIA,
46113 Moncada, Valencia, Spain
Departament de Zoologia, Facultat de Ciències Biològiques,
Universitat de València, Valencia, Spain