THE RED-STRIPED SUGAR-CANE SOFT SCALE, Pulvinaria tenuivalvata (NEW STEAD) (HEMIPTERA: COCCIDAE) AS A NEW PEST ATTAKING SUGAR CANE IN GIZA REGION. | ||||
| Journal of Plant Protection and Pathology | ||||
| Article 6, Volume 29, Issue 7, July 2004, Page 4235-4244 PDF (2.63 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jppp.2004.240002 | ||||
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| Authors | ||||
| E. A. EI-Shazly,1; I. A. Ismail2; R. S. Abdel-Rahman2 | ||||
| 1Dept., of Economic Entomology and pesticides FAC. of Agric., Cairo Un lv, Giza, Egypt. | ||||
| 2Pests and Plant Protection Dept. National Research Centre,Dokki, Cairo,Egypt | ||||
| Abstract | ||||
| Population dynamics of the coccid scale ,Pulvinaria tenuivalvata (Hemiptera: Coccidae), its infestation rate and survey predators and parasitoid associated were conducted through careful inspection of suqar-cane fields in Attfieh, Giza governorate during two successive seasons (200212003 and 2003/2004). Nymphal infestation started from apical part of plant in June in the first season (200212003) and in may in the second one(2003/2004). In first season infestation percentage ranged between 61.3%, to reach 100% infestation in September and October while it ranged between 30.6%t0100% in second season. Adult infestation started in July on apical part of sugar-cane plant with infestation percentage 35% t0100% and from 53.7 %100% infestation in first and second season, respectively .In both season infestation disappear in January. Negative Correlation found between the population density of sugar-cane insect scale ,P. tenuivalvata and temperature. The population growth rate decreased in November to February and it ranged between -52.12 and -100 insect scales in the first season 200212003 while it was -91.82 and 100 - insect scales in the. second season 2003/2004. | ||||
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