Plant Protection Science, 2013 (vol. 49), issue 2
Distribution of the 3-AcDON, 15-AcDON, and NIV chemotypes of Fusarium culmorum in the North-West of TurkeyOriginal Paper
Figen Mert-Türk, Ramazan Gencer
Plant Protect. Sci., 2013, 49(2):57-64 | DOI: 10.17221/63/2012-PPS
Fusarium culmorum isolates originated from diseased wheat plants showing crown rot and head blight symptoms in the 2009-2010 wheat growing season in the Çanakkale, Balikesir, and Tekirdağ Provinces in the North-West of Turkey. Fifty-six isolates were identified as F. culmorum. The chemotypes of F. culmorum known to produce the mycotoxins deoxynivalenol (DON) and its derivatives (3-AcDON and 15-AcDON) and nivalenol (NIV) were identified by PCR-based methods. Out of the 56 F. culmorum isolates tested with Tri13 PCR assays, one isolate yielded an amplicon similar to the size...
Field efficacy of neem (Azadirachta indica A. Juss) for managing soil arthropods and Cercospora leaf spots damage for increased yield in peanutOriginal Paper
Mumuni Abudulai, Abdulai B. Salifu, Danial Opare-Atakora, Mohammed Haruna, Inusah I.Y. Baba, Israel K. Dzomeku, Rick L. Brandenburg, David L. Jordan
Plant Protect. Sci., 2013, 49(2):65-72 | DOI: 10.17221/48/2012-PPS
Field efficacy of neem (Azadirachta indica A. Juss) for managing soil arthropods and Cercospora leaf spots damage to peanut was studied in Ghana from 2008 to 2010. Treatments consisted of neem kernel water extract (NKWE) and neem kernel powder (NKP) applied separately as soil drench at the rates of 10.5 and 21.0 kg/ha at either planting or pegging. Untreated control and chlorpyrifos treatment at pegging were included as checks. Results showed generally that the neem products at the concentrations tested were efficacious and comparable to chlorpyrifos in lowering populations of soil arthropods and severity of leaf spot diseases, leaf defoliation,...
Species diversity of true bugs on apples in terms of plant protectionOriginal Paper
Karel Hradil, Václav Psota, Pavla Šťastná
Plant Protect. Sci., 2013, 49(2):73-83 | DOI: 10.17221/30/2012-PPS
Monitoring of species spectrum of true bugs (Heteroptera) on apple trees without pest management was conducted in 2010-2011. Two sites were selected - an abandoned orchard and a road alley near the village of Velké Bílovice (Břeclav district, Czech Republic). The capture of true bugs with a fogger device (Pulsfog) on five selected trees in each site was performed. The effective substance deltamethrin at concentration of 0.0025 g/l was applied to the tree crowns. Three collections (28/4, 20/5, and 9/7) in 2010 and two (11/5 and 23/6) in 2011 were done. Out of 55 detected species of true bugs, 43 species occurred in the alley and 29 in the orchard. Thirty-two...
Preying capacity of different established predators of the aphid Lipaphis erysimi (Kalt.) infesting rapeseed-mustard crop in laboratory conditionsOriginal Paper
Kuldeep SINGH, Narendra N. SINGH
Plant Protect. Sci., 2013, 49(2):84-88 | DOI: 10.17221/66/2011-PPS
Experiments on the preying capability of different stages of larvae of coccinellid and syrphid flies on the mustard aphid, Lipaphis erysimi (Kalt.), were conducted in a laboratory during the winter cropping seasons of 2009-2010 and 2010-2011. Results revealed that grubs of the Coccinella septempunctata Linn. preyed the highest number of mustard aphids (average 61.42 aphids/day) followed by Syrphus confrater Wied (34.81 aphids/day), Syrphus balteatus Deg. (32.26 aphids/day) and Ischiodon scutellaris Fab. (27.76 aphids/day) during their larval span. Among the larval stages of the coccinellid and syrphid predators,...
Prediction of adult western corn rootworm (Diabrotica virgifera virgifera LeConte) emergenceOriginal Paper
Tomáš Středa, Otmar Vahala, Hana Středová
Plant Protect. Sci., 2013, 49(2):89-97 | DOI: 10.17221/28/2012-PPS
The sum of effective temperatures (SET) of adult western corn rootworm (WCR) occurrence was determined based on several criteria. The risk of WCR occurrence was mapped, and the areas of continuous reproduction of WCR in the Czech Republic were identified. The daily soil SET was observed until the initial adult WCR occurrence, and it ranged from 414 degree days (DD) when the lower threshold temperature (LTT) was 12.5°C at 0.02 m depth to 719 DD (LTT of 10°C at a depth of 0.05 m). The daily air SET ranged from 415 DD (LTT 12.5°C at a height of 2 m) to 726 DD (LTT of 10°C at a height of 0.05 m).
Mortality and movement behaviour of Bursaphelenchus xylophilus under different dosages of copper sulphateOriginal Paper
Qing Qing Tan, Hai Yan Wu, Shu Xia Jiang, Hong Bing Ma
Plant Protect. Sci., 2013, 49(2):98-103 | DOI: 10.17221/39/2012-PPS
The effects of in vitro exposure to different concentrations of copper sulphate for different durations on the mortality and locomotor behaviour of Bursaphelenchus xylophilus were evaluated. Copper sulphate showed strong effects against the nematode B. xylophilus at a low concentration (5 mg/l). The median lethal concentration (LC50) at 8, 24, 48, and 72 h were 31.634, 7.353, 6.557, and 5.568 mg/l, respectively. Mortality rate of B. xylophilus after treatment with various concentrations of copper sulphate for 6, 8, 24, 48, and 72 h were significantly different compared with control animals exposed to distilled...
Dr Jens Jürgen Nielsen (1927-2013)Obituary Notice
P. Bartoš, A. Lebeda
Plant Protect. Sci., 2013, 49(2):104 | DOI: 10.17221/6721-PPS