Browsing by Author "Packiaraj, D."

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    Effect of Ferrolure + In the Management of Red Palm Weevil (Rhynochoporus Ferrungineus F.) Infesting Coconut
    (2002) Rajamanickam, K.; Ramaraju, K.; Packiaraj, D.; Hameed Khan, H.; Subaharan
    Evaluation of Ferrolure pheromone trap in combination with food baits consisting of 1 kg of sugarcane molasses + 5 grams of yeast + 5 ml of glacial acetic acid + split petioles of coconut taken in a bucket of 10 lit. capacity was placed @ one traplha. During the first fortnight of trap installation, 49 weevils (32 females and 17 males) were trapped. There was a decline in the catch (1 weevil) after two months of trap installation due to reduction in active ingredient of the pheromone compound in the lure. On replacement of new sachets, the number of weevils trapped increased to 22 in sixth fortnight. The results indicate that the pheromone trap Ferrolure aid in monitoring and controlling the weevils in a ecofriendly manner.
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    Efficacy of Selected Chemicals and Botanicals Against Coconut Rhinoceros Beetle Oryces Rhinoceros L.
    (2002) Rajamanickam, K.; Natarajan, C.; Packiaraj, D.; Hameed Khan, H.
    Studies were conducted at Coconut Research Station, (TNAU), Aliyarnagar d&ring 2000-2001 to find out the efficacy of selected chemicals and botanicals against coconut rhinoceros beetle in young coconut palms. The results revealed that placement of phorate 10G @ 5gm in two perforated sachets in two inner most leaf axils for 2 times at 6 months interval significantly reduced the leaf damage from 28.18 per cent to 210 percent at 12 months after treatment. This was followed by placement of 3 naphthalene balls in 3 perforated sachets and leaf axil filling of Neem seed kernel powder + sand @ 100 + 100 gm reduced the leaf damage upto 4.66 and 4.78 per cent respectively. Leaf axil filling of Sevidol 8G + sand @ 25 + 200gm and placement of carbofuran 3G @ lOgm in 2 perforated sachets were on par in reducing the leaf damage. Application of Lindane +1.3% dust, Endosulfan dust and Pungam seed powder proved to be the least effective in containing the leaf damage. Leaf axil filling of common salt + sand did not have any influence on reducing the leaf damage caused by rhinoceros beetle.
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    Efficacy of Selected Chemicals and Botanicals Against Coconut Scale Aspidiotus Destructor and Mealybug Pseudococcus Cocotls
    (2002) Rajamanickam, K.; Packiaraj, D.; Hameed Khan, H.
    Studies were conducted at Agricultural Research Station, Aliyarnagar to find the efficacy of selected chemicals and botanicals against the coconut scale Aspidiotus destructor and mealybug Pseudococcus cocotis in young coconut palms. The results revealed that dimethoate @ 0.03% registered 95.00 percent mortality of scales followed by fish oil rosin soap @ 2.5% and monocrotophos @ 0.04 after 3 rounds of spraying. Phosphamidon 8 0.05% and Neem seed kernel extract @ 5%, Pungam oil @ 3%, were found to be less effective in controlling scales on coconut leaves. Similarly dimethoate @ 0.03% and monocrotophos 8 0.04% were found to be highly effective in checking the mealybug population followed by methyl demeton and fish oil rosin soap.
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    Genetic improvement of coconut (Cocos nucifera L.) in Tamil Nadu
    (2003-05) Ganesamurthy, K.; Natarajan, C.; Packiaraj, D.; Rajarathinam, S.; Khan, H.H.