Biological Characteristics of <i>Paurocephala sauteri</i> Enderlein (Hemiptera: Psylloidea: Psyllidae)
Welcome to Chinese Journal of Tropical Crops,

Chinese Journal of Tropical Crops ›› 2020, Vol. 41 ›› Issue (9): 1883-1888.DOI: 10.3969/j.issn.1000-2561.2020.09.023

• Plant Protection & Bio-safety • Previous Articles     Next Articles

Biological Characteristics of Paurocephala sauteri Enderlein (Hemiptera: Psylloidea: Psyllidae)

LU Fuping1,GENG Tao1,WU Huazhou1,WANG Nayu2,WANG Yongsong2,LOU Dezhao2,WANG Shuchang1,*()   

  1. 1. Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan 571101, China
    2. Hainan University, Haikou, Hainan 570228, China
  • Received:2019-07-31 Revised:2019-12-10 Online:2020-09-25 Published:2020-10-16
  • Contact: WANG Shuchang

Abstract:

The terminal bud and tender leaf of mulberry in Hainan has been found to be seriously damaged by Paurocephala sauteri Enderlein in recent years. The reproductive mode, developmental duration, fecundity and morphological characteristics of various developmental stages of P. sauteri on the host mulberry were investigated under laboratory conditions [temperature of (27±1)℃, RH (70±5)% and a photoperiod of 12L∶12D] in the life cycle of P. sauteri including egg, 1st-5th instar nymphs and adults (female and male). The egg was water drop shaped, with short egg pedicle and long terminal filament, milk white and transparent in appearance and had 2 red ocellus before hatching. The 1st instar nymph had milk white colour on the head and thorax, orange red in the compound eye and the abdomen, without wing bud. The instar nymphs of 2nd to 5th were yellow green in colour, the body length increased and the two pairs of wing pads developed as the instar increased. 2nd instar appeared wing pads with slightly bulged at apex. 3rd instar had wing pads more sharply triangular and pointed downward. 4th and 5th instar had wing pads directed backward, but extended beyond the first abdominal segment in 5th instar. Nymphs and adults could secret ball shaped white wax. P. sauteri produced offspring by sexual reproduction. Adults began mating after eclosion for 3 d, and became yellowish-brown in colour from yellow green of new eclosion. The mating behavior could continue 0.5 to 3 h. Then the female laid eggs after 18 to 21 h, with the number of eggs laid per female ranging from 20 to 42. The eggs were singly laid on both sides of the leaf vein underside of the leaf, and occasionally, some eggs also could be found at the upside edge of young leaves. The eggs hatched after 5 to 7 d with hatching percentage 98.19% and female percentage 70.44%. The developmental duration of the nymphs was 12 to 18 d, and that was 18 to 24 d from eggs to adults. The results would provides a theoretical basis and prerequisite for the management of P. sauteri.

Key words: Paurocephala sauteri, identification characteristics, reproductive characteristics, developmental duration

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