Effects of bio-control agents with medical compound (sodium docusate) on the grape mealybug, Planococcus ficus, its parasitoid and predator on grape vines | ||
| Journal of Pest Control and Environmental Sciences | ||
| Volume 20, Issue 1, 2012, Pages 1-17 PDF (6.88 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jpces.2012.462311 | ||
| Authors | ||
| Randa M. Abdel-Rahman* ; Ashraf A. H. Mangoud | ||
| Plant Protection Research Institute, Dokki, Giza 12618, Egypt. | ||
| Abstract | ||
| The effect of bio-control agents alone (Biofly, Beauveria bassiana and Egyptian nematode, Steinernema carpocapsae) or with medical compound (Sodium docusate) comparing with Super Misrona oil were studied on the grape mealybug, Planococcus ficus (Signoret) and its parasitoides, Leptomastix dactylopii Howard (Hymenoptera: Encyrtidae) and predator, Scymnus syriacus Kirsch (Coleoptera: Coccinellidae) before and after pruning. In the first season (2008), the treatments with different bio-control agents (Biofly and Egyptian nematode) alone gave moderate reduction percent on the population of adult females and nymphs of P. ficus when comparing with Super Misrona oil, which gave also moderate or highly reduction percent after 1st, 2nd and 3rd weeks before and after pruning. Also, these bio-control agent compounds gave also moderate toxic effect on parasitoides L. dactylopii and the predator, S. syriacus before and after pruning when comparing with Super Misrona oil, which gave also moderate toxicity after the 1st, 2nd and 3rd weeks. The data in the second season (2009) gave similar results to those obtained in the first year (2008). When mixing Biofly and Egyptian nematode with Sodium docusate, gave highly reduction percent on the population of adult females and nymphs of P. ficus comparing with mixing of Super Misrona oil + Sodium docusate gave also highly reduction percent after the 1st, 2nd and 3rd weeks before and after pruning. Also, these bio-control agent compounds + Sodium docusate gave moderate or highly toxic effect on its parasitoides and the predator before and after pruning comparing with Super Misrona oil + Sodium docusate which gave highly toxicity after the 1st, 2nd and 3rd weeks. The data in the second season (2009) gave similar results to those obtained in the first year (2008). It can be concluded that mixing the bio-control agents and mineral oils with medical compound (Sodium docusate) increased the effectiveness against the mealybug and could be using in integrated pest management programs “IPM” on the grape mealybug, Planococcus ficus, which becoming very dangerous pest on grape vine plants, especially in organic farms that exporting fruits to Europe and America. | ||
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