caa a22 4500 475834690 CHVBK 20180406123850.0 cr unu---uuuuu 170329e20001201xx s 000 0 eng 10.1023/A:1026505329762 doi (NATIONALLICENCE)springer-10.1023/A:1026505329762 The effect of temperature on development and fecundityof Scymnus levaillanti [Elektronische Daten] [N. Uygun, R. Atlihan] Development and fecundity of Scymnus levaillanti(Mulsant) were recorded at fiveconstant temperatures ranging from 15 to 35 ± 1 °C in 5 °C increments, 60 ± 5% RHand 16 h of artificial light (5000 Lux). Developmentaltime (egg to adult) of S. levaillantisignificantly decreased with increasing temperatures,ranging from 63.9 days at 15 °C to 11.1 days at35 °C. Development from egg to adult required305.2 DD above a developmental threshold estimated as11.7 °C. Oviposition periods lasted 86.5, 76.1,47.2, and 31.5 days at 20, 25, 30 and 35 °C,respectively. No eggs were deposited at 15 °C.Higher temperatures resulted in shorter generationtimes (TO) and in decreased net reproductiverates (RO) of the coccinellid. S.levaillanti kept at 30 °C produced 0.151females/female/day, the highest per capita rate ofpopulation growth (rm). The 'sfunctional response'of larvae and adults of S. levaillanti matcheswell that described by Holling (1959) as Type 2.Daily number of eggs deposited by females increased toa plateau with increasing prey density. Resultsobtained here provide information about the biology ofS. levaillanti, and its feeding capacityindicates that it may act as an important control agent. Kluwer Academic Publishers, 2000 development nationallicence fecundity nationallicence functional response nationallicence reproductive numerical response nationallicence temperature nationallicence Coccinellidae nationallicence Aphis gossypii nationallicence Scymnus levaillanti nationallicence Uygun N. Department of Plant Protection, University ofÇukurova, Adana, Turkey aut Atlihan R. Department of Plant Protection, University ofYüzüncü Yil, Van, Turkey aut BioControl Kluwer Academic Publishers 45/4(2000-12-01), 453-462 1386-6141 45:4<453 2000 45 10526 https://doi.org/10.1023/A:1026505329762 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1026505329762 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Uygun N. Department of Plant Protection, University ofÇukurova, Adana, Turkey aut NATIONALLICENCE 700 1- Atlihan R. Department of Plant Protection, University ofYüzüncü Yil, Van, Turkey aut NATIONALLICENCE 773 0- BioControl Kluwer Academic Publishers 45/4(2000-12-01), 453-462 1386-6141 45:4<453 2000 45 10526 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer