đặc điểm sinh vật học của rệp vảy Saissetia Oleae

ISSN 0070 - 231·5 TECHNICAL BULLETIN 112 BIOECOLOGY OF THE BLACK SCALE SAISSETIA OLEAE (OLIVIER) (HOMOPTERA: COCCIDAE) IN CYPRUS G M Orphanides i R "t::=C E I V E i::> : 21 SEP 1990 ! \_ \ AG ~ ICULT.U R ES E.A R C~\ ' RAL ~~S1 rr~~E _ _ -d AGRICULTURAL RESEARCH INSTITUTE MINISTRY OF AGRICULTURE AND NATURAL RESOURCES CYPRUS NICOSIA JANUARY 1990 BIOECOLOGY OF THE BLACK SCALE SAISSETIA OLEAE (OLIVIER) (HOMOPTERA: COCCIDAE) IN CYPRUS G.M Orphanldes SUMMARY The black scale, Saissetia oleae (Olivier), has one complete and one partial generation per year on olives The extent of the second generation varies among locations On citrus and oleander, only one generation per year develops Overwintering occurs mainly as first-, second- and third-ins tar larvae Infestation on citrus was sig­ nificant only in one location The within-tree distribution studies of the scale insect revealed more individuals of the first, second and third instar on the leaves and more young, rubber-stage and ovipositing females on the twigs In general, more scale insects were found on the lower than on the upper leaf surface However, more crawlers settled on the upper leaf surface in May - June Black scale infestation increased from the tip of a leafy twig to about the l Sth pair of leaves towards its base Twigs with 15 pairs of leaves or of about 20 em length would be the most suitable size for population sampling nEPIAH'I'H To AExaV\.O 'tTl; EALll;, Saissetia olese (Olivier), O\lJUtATJevE~ 1-2 YE'VI.t; 'to '1R6vo 6'tuv UVwt'tVOOE­ 'taL n:avw ornv EA~a H 7tQc.irtTl YEv~a O\lJUtATlQOwE'taL OE 6> £; 't~; n:EQLl)XE; H bEV'tEQTI 6j.LO>;, bEV d'V 20 Q.I ~ - i=Evrykhou (J) Q.I 10 rn I­ ~ Q.I ­ ~~ ~ n, ~ ~~ OJ, =:= a ~ ~§ ~~ ~g I- If) ~ Q.I l I en C ~ =Maz o t os Q.I (J) u ,., -= _ _r-= = I~ :;~' = -;= _== W l (J) [...]... Montanari 1982 scale, Saissetia oleae Bem., on citrus and olive trees in Incidenza dei fattori abiotici sulla mortalita della Saisse­ Israel Israel JournalofAgricultural Research 15: 21-26 tia oleae (Olivier) Redia 65: 355-366 Rosen, D., I Harpaz, and M Samish 1971 Two species of Podoler, H., I Bar-Zacay, and D Rosen 1979a Population dynamics of the Mediterranean black scale, Saissetia oleae (Olivier),... D Rosen 1979b Population dynamics of the Mediterranean black scale, Saissetia setia oleae Bern dans les vergers de la region egeenne Fruits 30: 163-165 oleae (Olivier), on citrus in Israel II Distribution within the citrus tree Journal Entomological Society South Afri­ ca 42: 267-273 Viggiani, G 1978 II vecchio ed il nuovo sulla Saissetia oIeae L'informatore Agrario Verona 38: 2137-2142 Issued by... and M Samish 1971 Two species of Podoler, H., I Bar-Zacay, and D Rosen 1979a Population dynamics of the Mediterranean black scale, Saissetia oleae (Olivier), on citrus in Israel I A partial life table Saissetia (Homoptera, Coccidae) injurious to olive in Is­ rael and their natural enemies Israel Journal of Entomol­ ogy 6: 35-53 Journal Entomological Society South Africa 42: 257­ Solomides, Z 1913 Plant