biological and life table parameters of the green lacewing, chrysoperla carnea (neu., chrysopidae) in feeding on different preys in laboratory conditions
نویسندگان
چکیده
the green lacewing, chrysoperla carnea (stephens) is one of the important predators of many pests including helicoverpa armigera (hübner) and tetranychus urticae koch. in insectaries, the larvae of this predator are mainly reared on anagasta kuehniella egg. in this research, biological and life table parameters of c. carnea in feeding on a. kuehniella egg as a laboratory prey and two natural preys including h. armigera (stages of egg and neonate larva) and t. urticae were studied. the experiments were carried out at 26±1 °c, 70±5% rh and 16:8 (l:d) h. c. carnea larvae reared on t. urticae did not survive to adulthood. the maximum longevity of adult females (38.3 day), oviposition period (32.33 day) and eggs/female/day (30.52) were obtained in rearing of the larvae on h. armigera egg. survivorship curve of the predator on all insect preys was from type i. net reproductive rate (r0) and intrinsic rate of increase (r) of c. carnea on a. kuehniella egg and h. armigera egg and neonate larva were estimated to be 352.68, 579.64 and 385.47 per generation and 0.1816, 0.2152 and 0.2094 d-1, respectively.
منابع مشابه
the side effects of several pesticides and plant extracts on biological parameters of green lacewing chrysoperla carnea (neuroptera: chrysopidae) after treating eggs and 3rd instar under laboratory conditions
the side effects of three pesticides, hexaflumuron, pymetrozin and spirodiclofen and four plant extractions including, calotropis procera (willd.) r. br. (asclepiadaceae), teucrium polium (labiatae), fumaria parviflora lam. (fumariaceae) and thymus vulgaris l. (labiatae) were evaluated on survival rate and reproductive parameters of chrysoperla carnea (stephens) at 26±1oc, 60±5% rh and 16:8 (l:...
متن کاملeffect of different prey species on the biological parameters of chrysoperla carnea (neuroptera: chrysopidae) in laboratory conditions
the prey suitability for generalist predators is an important feature for efficient mass rearing and ipm. the green lacewing, chrysoperla carnea (stephens) is a polyphagous predator attacking several pests on various crops. this experiment was conducted under laboratory conditions at 25 ± 2 °c, 60 ± 5% r. h. and a photoperiod of 16l: 8d h. the effects of different prey species were investigated...
متن کاملComparing effects of insecticides on two green lacewings species, Chrysoperla johnsoni and Chrysoperla carnea (Neuroptera: Chrysopidae).
This study compared lethal and sublethal effects of five insecticides, chlorantraniliprole, cyantraniliprole, spinetoram, novaluron, and lambda-cyhalothrin, on adult and second instars of two green lacewing species, Chrysoperla carnea (Stephens) and Chrysoperla johnsoni Henry, Wells and Pupedis (Neuroptera: Chrysopidae) in the laboratory. Formulated pesticides were tested using concentrations e...
متن کاملinvestigation on the effects of several plant extracts and thiamethoxam on two sex life table of chrysoperla carnea (stephens) (neu.: chrysopidae) in laboratory conditions
demographic toxicology is a common method for investigation on the sub lethal effects of pesticides on natural enemies. the side effects of plant extracts from root of madder (rubia tinctorum l.), seeds of dill (aniethum graveolens l.) and seeds of galbanum (ferula gummosa boiss.) in comparision with thiamethoxam were evaluated on life table parameters of c. carnea as agonoscena pistaciae preda...
متن کاملBacillus thuringiensis toxin (Cry1Ab) has no direct effect on larvae of the green lacewing Chrysoperla carnea (Stephens) (Neuroptera: Chrysopidae).
Earlier studies have shown that larvae of the green lacewing predator Chrysoperla carnea are negatively affected when preying on lepidopteran larvae that had been fed with transgenic maize expressing the cry1Ab gene from Bacillus thuringiensis. To test whether the observed effects were directly caused by the Cry1Ab toxin, we have developed a bioassay which allows us to feed high concentrations ...
متن کاملBiosafety of a biopesticide and some pesticides used on cotton crop against green lacewing, Chrysoperla carnea (Stehens) (Neuroptera: Chrysopidae)
Chlorpyrifos, lambda-cyhalothrin, cypermethrin, spinosad and buprofezin were tested against the second instar larvae and adults (except buprofezin) of the green lacewing, Chrysoperla carnea. The results showed that chlorpyrifos was more toxic to second instar larvae than lambda-cyhalothrin, cypermethrin, spinosad and buprofezin with LC50 values of 1.78, 8.81, 26.9, 294.36 and 997.05 ppm respect...
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عنوان ژورنال:
کنترل بیولوژیک آفات و بیماری های گیاهیجلد ۳، شماره ۱، صفحات ۱۷-۳۰
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