Pesticidi i fitomedicina 2011 Volume 26, Issue 2, Pages: 147-157
https://doi.org/10.2298/PIF1102147J
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Jumping plant-louse Cacopsylla (Hepatopsella) bidens (Šulc, 1907) (Hemiptera, Psyllidae) new pest on pear in Serbia
Jerinić-Prodanović Dušanka (Poljoprivredni fakultet, Beograd)
The problem of jumping plant - lice, an important pest on pear, appeared in
the middle of the twentieth century and represents a direct consequence of
pear cultivation on large areas with intensive application of agrotechnical,
pomotechnical and chemical protection measures. Three species of jumping
plant - lice are known on pear in Serbia: Cacopsylla pyri, C. pyrisuga i C.
pyricola, among which C. pyri is the most important pest in intensive
orchards. During jumping plant - lice fauna research in Serbia, besides these
three species, another one was determined as well - Cacopsylla bidens. In the
period from 2005 to 2010, the presence and harmfulness of C. bidens were
determined at 56 localities, both in intensive and extensive pear orchards.
Besides on cultivated pears, C. bidens was also determined on wild species of
Pyrus genus. In our conditions, C. bidens overwinters in adult stage on pear.
The activation of the adults that have overwintered occurs at the beginning
of March. The extended period of oviposition provides permanent presence of
all developmental stages on plant, so the generations overlap. It can develop
3 to 4 generations per year. Since this is the first record of the species in
Serbia, this paper describes basic morphological characteristics of the
species, development cycle and distribution.
Keywords: cacopsylla bidens, jumping plant - lice, pear, Serbia
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