Prune by cutting plants just above branch crotches and nodes instead of shearing off terminals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Thus, TNAU NO (A and C) 2% was found effective against cardamom thrips with no adverse organoleptic properties and can be recommended. Milk was taken as the medium so that any slight change in taste, aroma, or colour can be easily detected. With these views, a study was carried out to find the efficacy of TNAU NO (A and C) along with unformulated neem oil and a commercial neem product (Vijay Neem) on cardamom thrips and organoleptic test on capsules collected from neem sprayed cardamom plants. Ordinary neem oil 0.2% recorded the least reduction of damage over check (21.5%). Thus organoleptic test was carried out to know if there is any unacceptability for the cardamom harvested from neem sprayed field and blended with milk. Field trials were laid out in randomized block design (RBD) in the farmers’ holdings in Bodimettu, Bodi and Devarshola, Gudalur, to test the efficacy of neem oil against thrips. Delay soil application, when possible, until after the nearby plants are also done flowering. The present investigation clearly indicated that there are no disagreeable attributes in the harvested product of cardamom due to the application of neem which is effective in reducing the thrips and thus can be recommended for spray since it will not hamper the export also. A clump consists of 5-6 cardamom plants planted/grown together, which covers an area of 0.8 to 1 m2, demanding 0.5 L of spray fluid per clump. It occurs mainly on the underside of leaves and on fruit clusters or other plant parts that touch each other. Row covers, hot caps, and other types of cages with a fine mesh can exclude thrips and other insects from vegetables and other young herbaceous plants. Nat. After the third application, the thrips damage was 7.7 and 10.2 in TNAU NO(C) 3 and 2% treatments 7 days after treatment, respectively. These materials are highly toxic to natural enemies and pollinators, can cause spider mite outbreaks, and are not particularly effective against most thrips. Western flower thrips also vectors Impatiens necrotic spot virus and Tomato spotted wilt virus, which can severely damage or kill certain vegetable crops and herbaceous ornamentals. 2009. The reduced infestation of the cardamom pest in neem formulations sprayed field might be due to antifeedant, ovipositional deterrent or growth disturbing actions and also repellency effect. Western flower thrips is primarily a pest of herbaceous plants; but high populations can damage flowers on woody plants, such as roses. What the neem oil does is it affects leaf eating insects by making them forget to eat if interrupts their hormonal balance. Publ. Repeat applications may be necessary. Spray treatment was given using backpacked knapsack sprayer with hollow cone nozzle at a rate of 750 L ha−1 (1500 cardamom clumps). The mean scores graded based on the sensory perception are furnished in Table 3. 3402. [17] stated that maize treated with neem oil, neem leaf, and kernel powder adversely affected the taste, aroma, and overall acceptability of Chapati rendering it unsuitable for consumption makes the necessity of organoleptic test especially for botanical pesticides. For thrips that feed in buds or unexpanded shoot tips, clip off several plant parts suspected of harboring thrips, place them in a jar with 70% alcohol (ethanol), and shake vigorously to dislodge the thrips. Neem Oil extract is very good at dealing with thrips. Using row covers or other methods to prevent thrips infestation is the most effective way to prevent infection by thrips-vectored viruses.

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