Studies of life history and some aspects of field biology and ecology of<i>Nysius huttoni</i>White (Hemiptera: Lygaeidae)

Wei, Yong Jiang

doi:10.1080/03014220809510552

Cited by 11 publications

(12 citation statements)

References 7 publications

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“…This trend was not found in other years in which the proportions of wing forms seem to be stable throughout seasons. Wei (2008a) reported that the third-generation adults of N. huttoni occurred about 35 and 45 days later in 1996 (mid-March) than in 1997 (midFebruary) and 1998 (very early February), respectively. This may explain the occurrence of more Sb-forms in 1996, due to lower temperature and shorter photoperiod (as discussed below), and to differences in weather between years.…”

Section: Discussionmentioning

confidence: 99%

“…It is essential to consider environmental control of wing-form determination in the context of the life cycle of N. huttoni, which has three generations each year (Wei 2008a). The first and second generations as well as a partial third generation occur mainly between spring and summer when high temperature and long day length predominate.…”

Section: Discussionmentioning

confidence: 99%

“…However, the proportion of each combination in the field population is unknown. To investigate this, when mating was at its peak (Wei 2008a), paired adults in copula were collected from the field between 11.00 am and 3.00 pm by guiding them, with tweezers, into small glass tubes, one pair per tube. They were examined under a binocular microscope using the three wing length criteria described above.…”

Section: Methodsmentioning

confidence: 99%

“…Insects were collected from a piece of wasteland in Hornby, south of Christchurch, New Zealand, as described by Wei (2008a). This site of about one hectare, was a dry and sparsely vegetated sandy habitat dominated by barley grass (Hordeum marinum Huds.…”

Section: Methodsmentioning

confidence: 99%

“…huttoni has three generations per year in Canterbury (Wei 2008a). Both sexes of this species show wing polymorphism of macropters, sub-brachypters and brachypters (see 'Materials and methods' for definitions), and it appears to be unique amongst the Orsillidae in having three wing-forms in both sexes (Eyles 1960).…”

Section: Introductionmentioning

confidence: 99%

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Wing polymorphism inNysius huttoniWhite (Hemiptera: Orsillidae)

Wei

2011

New Zealand Journal of Zoology

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Individuals of Nysius huttoni White, a ground-dwelling hemipteran, develop one of three wing forms. Field studies were carried out from 1995 to 1998 to investigate the proportion of each wing form; adult populations consisted of 94.1% macropters, 5.5% sub-brachypters and 0.4% brachypters. Paired mating adults were collected for two years in 1995Á1996 and 1996Á1997 to investigate which wing forms were mating with which, and the proportions of the wing form combinations among the mating pairs. Theoretically, there are nine possible mating combinations among three wing forms. However, only six mating combinations were found in the field. Four mating combinations, M)M, àM) ßSb, ßM ) àSb and Sb)Sb occurred in both years; and two mating combinations, ßM ) àB and ßSb ) àB were found only in 1996Á1997. The other three mating combinations, àM) ßB, àSb) ßB and B)B were not found in either year. M )M was the predominant mating combination with an average percentage of 81.2%. The effects of temperature and photoperiod on wing development of this species were investigated at five constant temperatures (15, 20, 25, 30 and 3590.58C), one ambient (laboratory room conditions) temperature and three photoperiods (16-h, 12-h, and 8-h of light) in the laboratory. The results indicate that both low and high temperatures, and short day-length at lower temperature, tend to accelerate the production of sub-brachypters and brachypters, while high temperature under long photoperiod appears to favour the production of macropters. This ability to produce macropters possibly benefits this bug by enabling rapid dispersal of adults during occasional very dry summers (which may kill preferred weedy hosts) to temporary alternative crop hosts in Canterbury and Central Otago.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Wing polymorphism inNysius huttoniWhite (Hemiptera: Orsillidae)

Wei

2011

New Zealand Journal of Zoology

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Flight initiation of Nysius huttoni (Hemiptera: Orsillidae) in relation to temperature and wing forms

Wei

2013

Appl Entomol Zool

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Effects of sex ratio on different biological parameters ofEngytatus varians(Distant) (Hemiptera: Miridae) adults and their offspring: prey preference forBactericera cockerelli(Sulcer) (Hemiptera: Triozidae)

Mena-Mociño

Pineda

Martínez

et al. 2021

Bull. Entomol. Res.

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In the present study, the influence of three sex ratios (1:1, 1:2, and 1:3; female:male) of the mirid Engytatus varians (Distant) (Hemiptera) on different biological parameters and on its offspring was evaluated. The prey preference of different developmental stages of this predator for different nymphal instars (N) of Bactericera cockerelli (Sulcer) (Hemiptera: Triozidae) was also evaluated. The fertility was significantly higher (24 nymphs/female) in the 1:3 sex ratio than in the 1:1 and 1:2 sex ratios (14 and 16 nymphs/female, respectively). The females in the 1:1 and 1:2 sex ratios lived 1.14 and 1.43 days more (27 and 28 days, respectively) than those in the 1:3 sex ratio (26 days). The nymphs derived from the females of the three sex ratios (first filial generation, F1) had five instars and a duration of 17 or 18 days. The ratio of the F1 generation females was not affected by the sex ratio of their parents. In choice tests, independent of whether the preys were placed on a single or multiple tomato (Solanum lycopersicum L.) leaflets, the consumption of females and males and N3, N4, and N5 nymphs of E. varians on B. cockerelli, generally showed the order of N2>N3>N4>N5. In conclusion, the findings revealed in this study can help to improve the rearing methodology for increasing populations of E. varians. In addition, they can serve as a guideline for releasing this predator in times when there is an abundance of early instar nymphs of B. cockerelli.

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Studies of life history and some aspects of field biology and ecology ofNysius huttoniWhite (Hemiptera: Lygaeidae)

Cited by 11 publications

References 7 publications

Wing polymorphism inNysius huttoniWhite (Hemiptera: Orsillidae)

Wing polymorphism inNysius huttoniWhite (Hemiptera: Orsillidae)

Flight initiation of Nysius huttoni (Hemiptera: Orsillidae) in relation to temperature and wing forms

Effects of sex ratio on different biological parameters ofEngytatus varians(Distant) (Hemiptera: Miridae) adults and their offspring: prey preference forBactericera cockerelli(Sulcer) (Hemiptera: Triozidae)

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