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امکان ذخیره سازی حشرات کامل کفشدوزک Cryptolaemus montrouzieri در دمای پایین | ||
| مهار زیستی در گیاه‌پزشکی | ||
| مقاله 6، دوره 5، شماره 2 - شماره پیاپی 10، اسفند 1396، صفحه 65-74 اصل مقاله (148.13 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/bcpp.2018.117920 | ||
| نویسندگان | ||
| نگار شهریاری1؛ علی افشاری* 1؛ همت دادپور مغانلو2؛ احمد ندیمی1 | ||
| 1گروه گیاه‌پزشکی، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، گرگان، ایران | ||
| 2آزمایشگاه تحقیقات کنترل بیولوژیک ، موسسۀ تحقیقات گیاه‌پزشکی کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، آمل، ایران | ||
| چکیده | ||
| کفشدوزکCryptolaemus montrouzieri مهمترین شکارگر شپشکهای آردآلود در باغات مرکبات و چای شمال ایران میباشد. به‌منظور در اختیار داشتن تعداد کافی از این کفشدوزک و رهاسازی آن در زمانهای مناسب، ذخیرهسازی آن در دماهای پایین ضروری میباشد. در این پژوهش برای بررسی امکان ذخیرهسازی این کفشدوزک، حشرات کامل نر و ماده برای مدت زمانهای 5، 7، 10، 14 و 30 روز درون یخچال (دمای 1±5 درجۀ سلسیوس، رطوبت نسبی 10±60 درصد و تاریکی مطلق) نگهداری شدند و پس از سپری شدن مدت زمان مورد نظر، مرگ و میر آنها شمارش و با شاهد مقایسه شد. سپس، کفشدوزکهای زنده مانده درون ظروف پتری جفت شدند و در داخل یک دستگاه ژرمیناتور (دمای 2±26 درجۀ سلسیوس، رطوبت نسبی 5±60 درصد و دورۀ روشنایی به‌تاریکی 16 به هشت ساعت) قرارگرفتند و تا زمان مرگ آخرین فرد، تعداد تخمهای گذاشته شده در هر روز شمارش و یادداشت شد. نتایج نشان داد ذخیرهسازی در دمای پایین زندهمانی، طول عمر و میانگین تخم‌گذاری روزانه کفشدوزک را به‌طور معنیداری کاهش میدهد. با افزایش طول مدت ذخیرهسازی، درصد مرگ و میر حشرات نر و ماده افزایش یافت و به‌ترتیب از 2/5±39/29 و 8/4±78/25 درصد در تیمار 5 روز به100 درصد در تیمار 30 روز رسید. در همین حال، طول عمر کفشدوزکهای ماده از 2/2±8/99 روز در تیمار شاهد به3/2±5/51 روز در تیمار 14 روز و میانگین تخم‌گذاری آنها از 06/0± 99/4 تخم/ ماده/ روز در تیمار شاهد به07/0±51/4 تخم/ ماده/ روز در تیمار 14 روز کاهش یافت. به‌طور کلی، حشرات کامل این کفشدوزک نسبت به‌دمای پایین حساس بودند و ذخیرهسازی بلندمدت آنها (بیش از هفت روز) در دمای پایین (پنج درجۀ سلسیوس) توصیه نمیشود. | ||
| کلیدواژه‌ها | ||
| انسکتاریوم؛ پرورش انبوه؛ کفشدوزک کریپتولموس؛ سرمادهی؛ شپشکهای آردآلود | ||
| عنوان مقاله [English] | ||
| Cold storage possibility of Cryptolaemus montrouzieri adults | ||
| نویسندگان [English] | ||
| Negar Shahriari1؛ Ali Afshari1؛ Hemmat Dadpour Moghanlou2؛ Ahmad Nadimi1 | ||
| 1Department of Plant Protection, Gorgan University of Agricultural Sciences and Natural resources, Gorgan, Iran | ||
| 2Biological Control Research Laboratory, Iranian Research Institute of Plant Protection, Agricultural Research, Education and Extension Organization (AREEO), Amol, Iran | ||
| چکیده [English] | ||
| Cryptolaemus montrouzieri (Col.: Coccinellidae) is the most important predator of mealybugs in citrus and tea orchards in north of Iran. Cold storage is necessary in order to have a sufficient numbers of this ladybird and its release at desired times. This study was therefore carried out to assess the possibility of storing adult stage of this ladybird under refrigerator conditions (5±1˚C, 60±10% RH and full darkness). Male and female adult ladybirds were stored at low temperature for different durations of 5, 7, 10, 14 and 30 days. After each storage period, the adults’ mortality was recorded in each treatment and was compared with the control. Survived ladybirds were then paired and transferred to the separate Petri dishes and kept in a growth chamber (26±2 °C, 60±5% RH, and 16:8 h L: D) and their fecundity data were recorded daily until the death of ladybirds. Results showed that cold storage significantly decreased their survival, longevity and fecundit. Mortality percent of males and females increased with storage duration from 29.39±5.2 and 25.78±4.8 percent in five days treatment to 100 percent in 30 days treatment, respectively. Female longevity ranged from 99.8±2.2 days in control to 51.5±2.3 days in 14-days treatment. Meanwhile, mean of oviposition in female ladybirds decreased from 4.99±0.06 to 4.51± 0.07 eggs/day. In conclusion, the adult stage of this ladybird was more susceptible to low temperatures than other stages and their long-term cold storage (longer than seven days) is not recommended. | ||
| اصل مقاله | ||
|
insectarium,mass rearing, Cryptolaemus montrouzieri, cold storage, mealybugs | ||
| مراجع | ||
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