Dispersion of the Mediterranean Fruit Fly Ceratitis capitata Wiedem. (Diptera: Tephritidae) in Mandarin Orchards on Montenegrin Seacoast
Mediteranska voćna muva Ceratitis capitata Wiedem. (Diptera, Tephritidae) – disperzija u zasadima mandarine na području Crnogorskog primorja
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Author
Radonjic, Sanja
Keywords
Mediterranean Fruit FlyDispersion
Mandarin orchards
Mediteranska voćna muva
disperzija
zasadi mandarine
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The Mediterranean fruit fly Ceratitis capitata Widem. has been an established pest on
the Montenegrin seacoast for more than ten years, although with variable abundance in
different years and localities.
From an economic aspect, its most important host in Montenegro is the mandarin
unshiu (Citrus unshiu Marc.), particularly its cultivar Owari. Dispersion of C. capitata in citrus
orchards (prevailingly mandarin) was monitored on Baošići, Lastva Grbaljska and Bar localities
during 2003 and 2004.
The results of this study showed that, during both years, peripheral-row trees (primarily the
first row) in citrus orchards were more exposed to attacks by C. capitata than middle and last
rows. In 2003, the average number of larvae in mandarin fruits in first rows varied from 11.4±0.59
to 40.1±0.67, from 7.04±0.47 to 28.8±0.48 and from 2.9±0.07 to 17.3±0.54 on the localities of
Baošići, Lastva Grbaljska and Bar, respectively. On the same localities, it ranged from 7.4±0.34 to
16.9±0.4, from 0.0 to 18.7±0.32 and from 0.0 to 9.93±0.56 in middle rows, and from 3.0±0.28 to
16.8±0.77, from 0.0 to 20.9±0.38 and from 0.0 to 13.1±0.39 in last rows. Data collected at Baošići,
Lastva Grbaljska and Bar in 2003 also suggest that the average number of larvae per mandarin
fruit in first rows was 1.78-2.08 times higher than in middle rows, and 1.25-1.77 times higher than
in last rows. In 2004, the average number of larvae in mandarin fruits in first rows varied from
7.3±0.27 to 8.3±0.45, from 7.2±0.23 to 17.6±0.59 and from 3.8±0.1 to 8.8±0.25 on the localities
of Baošići, Lastva Grbaljska and Bar, respectively. On these localities, it ranged from 1.7 ±0.17 to
3.3±0.19, from 1.1±0.12 to 3.5±0.8 and from 0.0 to 0.8±0.14 in middle rows, and from 1.7±0.17 to
3.6±0.32, from 0.0 to 4.0±0.26 and from 0.0 to 0.2±0.06 in last rows. Data collected in 2004
also showed that the average number of larvae in mandarin fruits in first rows on the same
localities was 3.12-15.75 times higher than in middle rows, and 2.94 -6.3 times higher than in
last rows. Mediteranska voćna muva Ceratitis capitata Widem. se smatra odomaćenom na Crnogorskom
primorju već više od deset godina, premda sa izraženim oscilacijama u brojnosti
kako po godinama, tako i u različitim lokalitetima.
U ekonomskom smislu, njen najznačajniji domaćin u Crnoj Gori je mandarina unšiu (Citrus
unshiu Marc.), a posebno sorta Owari. Tokom 2003. i 2004. godine, u lokalitetima Baošići,
Lastva Grbaljska i Bar praćena je disperzija C. capitata u zasadima citrusa u kojima je brojnošću
dominirala mandarina unšiu.
Rezultati dvogodišnjih istraživanja ukazuju da muva jače napada plodove u perifernom
redu voćnjaka u odnosu na srednji i poslednji red. U 2003. godini je utvrđno da je u lokalitetima
Baošići, Lastva Grbaljska i Bar prosečan broj larvi u plodovima mandarine u prvom redu
varirao od 11,4±0,59 do 40,1±0,67, od 7,04±0,47 do 28,8±0,48 i od 2,9±0,07 do 17,3±0,54.
U istim lokalitetima zabeleženo je prosečno od 7,4±0,34 do 16,9±0,4, od 0,0 do 18,7±0,32
i od 0,0 do 9,93±0,56 larvi u plodovima koji su uzorkovani u srednjem redu, odnosno od
3,0±0,28 do 16,8±0,77, od 0,0 do 20,9±0,38 i od 0,0 do 13,1±0,39 larvi u plodovima u poslednjem
redu. Rezultati iz 2003. godine, takođe, ukazuju da je u ispitivanim lokalitetima prosečan
broj larvi u plodu mandarine bio 1,78-2,08 puta veći u prvom redu u odnosu na srednji,
odnosno 1,25-1,77 puta veći nego u poslednjem redu. U 2004. godini je utvrđno da je u
lokalitetima Baošići, Lastva Grbaljska i Bar prosečan broj larvi u plodovima mandarine u prvom
redu varirao od 7,3±0,27 do 8,3±0,45, od 7,2±0,23 do 17,6±0,59 i od 3,8±0,1 do 8,8±0,25.
U istim lokalitetima zabeleženo je prosečno od 1,7 ±0,17 do 3,3±0,19, od 1,1±0,12 do 3,5±0,8
i od 0,0 do 0,8±0,14 larvi u plodovima koji su uzorkovani u srednjem redu, i od 1,7±0,17 do
3,6±0,32, od 0,0 do 4,0±0,26 i od 0,0 do 0,2±0,06 larvi u plodovima u poslednjem redu. Rezultati
iz 2004. godine, takođe, ukazuju da je u lokalitetima Baošići, Lastva Grbaljska i Bar
utvrđeno da je prosečan broj larvi u plodovima mandarine bio 3,12-15,75 puta veći nego u
srednjem redu, odnosno 2,94-6,3 puta veći nego u poslednjem redu.