The aggregate percentage of encapsulated eggs of efficient encapsulation was 14.40% and 20.10% in 18 and 21 d.o. Their biology, population dynamic, The spherical mealybug, Nipaecoccus viridis (Newstead) (Hemiptera, Pseudococcidae), is a The number of mealybug individuals was too low in winter; the low population has lasted until February 2014 in the second year of this study. in orchards biological control application used, followed by summer oil sprayed orchards as 4.25 individuals, of C. carnea and Scymnus spp., and spirotetramat sprayed orchards as 2.67 individuals per orchard, of C. carnea and Scymnus spp. The study investigated some bioecological characteristics, such as, development time, duration of biological stages, sex ratio, daily and total fecundity per female, and longevity of P. citri, under different temperature regimes during 2015-2016 in Citrus Pest Laboratory at Çukurova University. population projection showed Pl. startxref The average longevity of adult females was reduced from 16.3 days at 15 °C to 9.8 days at 30 °C. Mean numbers of live metaflumizone-, azadirachtin-, Bacillus thuringiensis-and B. thuringiensis+azadirachtin-treated larvae at the 7 DAA were recorded as 0.33, 1.17, 0.67 and 0.33, respectively. Temperature-dependent development rate of Planococcus citri at three constant and one alternating temperature (27.5°C for 25/30°C) on grapefruit leaves. Temperature Requirements of Some Aphids and Their Parasites, Mealybugs of California with Taxonomy, Biology and Control of North American Species (Homoptera: Coccoidea: Pseudococcidae), fruit pest biology and their biological a control. D’abord replacée dans le genre The first nymph stage lasted 7.86 d for females, and 8.1 d for males at 25°C. polyphgous pest on many plants around the world including the grapevine. 167 0 obj <> endobj 0000005898 00000 n Side effect of pesticide on benificail insect. Mealybug population reached to peak point on May 30 with 5.9 adults per tree, second peak point on July 10 with 7.3 adults per tree, third peak point on August 7 with 19 adult per tree, and last peak point on September 18 with 13 adults per tree in Erdemli in 2013. Biological control agents were sampled by a strike technique. Totally 80±10 A. gossypii at the 2 nd and/or 3 rd nymphal stage were transferred with a help of brush on each cotton plants which was produced in the laboratory. Planococcus citri (Hemiptera: Pseuodococcidae), known as citrus mealybug, is a most crucial In this study, information on The most common species was Chilocorus bipustulatus (620), followed by Coccinella septempunctata (308). years. The larval and parasitoid mummies seen in the visual control method were brought to the laboratory and cultured to obtain the adults.. No useful species have been found in the gardens surveyed in Seyhan and Yüreğir districts of Adana. .The predators which was, This study has been conducted for monitoring the population of Citrus mealybugs in Eastern Mediterranean Region of Turkey between 2013-2015. Planococcus citri Risso, 1813 (Hemiptera: Pseudococcidae), is one of the major pest of citrus and many other orchards crops, and ornamental plants in subtropical and tropical regions of the world. Mealybugs have not been determined through 2 years in Yüreğir. citri fed on the 41-B grapevine variety and can be useful for IPM studies. The preadult duration of females Pl. Consequently, Citrus mealybugs may complete the fourth generation depending on climatic factors, also may overwinter in different stages of the fifth generation during this study were determined.