Field evaluation of insecticides for the management of cucumber moth, Diaphania indica (Saunders) (Lepidoptera: Crambidae) on bitter gourd (original) (raw)
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Selection of Bio Pesticides against Cauliflower Diamondback Moth: A Review of Literature Prospect
2018
An experiment was carried out in the Entomology Experimental Station based-on Agriculture Research Institute (ARI) Tandojam, Sindh Pakistan. In this regard, the Randomized Complete Block Design with three replication and sub-plot size of 3mx3 (9m 2) was used. However, 7 treatments with three replications i.e. T1=chemical control (confidor), T2=Neem (Azadirachta indica), T3=Akk (Calotropis procera Alton. F.), T4=Tooh (Citrullus colocynthus Schrad. L.), T5=Datura (Datura stramonium) T6=Tabacco (Nicotiana tabacum) and T7=Control (untreated) were effectively used, in this connection, the pre and post-treatment and observations were also be documented. Against Diamondback moth population on cauliflower the first spray results showed that chemical control(confidor) showed highest efficacy (98.88%), followed by Neem extract (97.23%), Tobacco extract (95.39%), Tooh extract (92.19%), Dhatura (89.79%) and least efficacy was resulted by Akk extract (80.98%). After second spray, chemical control(confidor) showed highest efficacy (99.47%), followed by Neem extract (96.27%), Tobacco extract (96.44%), Tooh extract (91.54%), Akk extract (77.94%) and the lowest efficacy was resulted by Dhatura extract (69.19%) against diamondback moth after second spray. Finally, general or best selection of biopesticides against diamondback moth after 1st and 2nd spray, the treatments were ranked as the: chemical control (confidor); neem extract; tobacco extract tooh extract akk extract and dhatura extract one to seven ranked order respectively
2021
The particular study was conducted in laboratory condition at Khanzada Agriculture Farm, Tando Allahyar, during 2019. The moths frequently can be seen holding their brushes above the body level and slowly waving them in a circular fashion. Longetivity of male and female lasted for 6.8 days and 8.6 days, respectively on watermelon and 6.2 days and 7.8 days respectively on pointed gourd Post spray observations were recorded with an interval of 24, 48 and 72 hours after spraying. Treatments T1 (Emamectin benzoate), T6 (Triazophos) and T7 (Cartap hydrochloride) showed 100 percent mortality at 24 hrs after spraying and all these treatments were at par with each other. At 48 hrs of spraying, the treatments T3 (Dimethoate) and T4 (Profenophos) recorded 100 % mortality and both these treatments were at par with each other.
Evaluate of bio-efficacy on different insecticides against diamondback moth on cauliflower
2019
The field experiment was conducted during Rabi, 2016-17 to assess the bio-efficacy of some insecticides against diamondback moth of cauliflower, based on per cent reduction of larval population at different intervals, yield of cauliflower curds and benefit cost ratio. Total three sprays of insecticides were applied during the season. The pre-treatment larval population of diamondback moth was recorded one day before treatment and the post treatment population was recorded in all the sprays after 1, 3, 7 and 15 days of spraying of insecticides during the year.
Impact of insecticides on sucking insect pests of cucumber in greenhouse
Pure and Applied Biology
Cucumber is a creeper vine vegetable. It belongs to the Cucurbitaceae family that bears cucumiform fruits, which are used as vegetables. There are three main varieties i.e., slicing, pickling, and burpless or seedless. This study was conducted at Millan Agro Seed, Agricultural Research Farm, Tandojam to observe the efficacy of various insecticides against insect pests of cucumber i.e., Bemisia tabaci (Gennadius) and Aphis gossypii (Glover) in greenhouse at different days intervals. The maximum reduction in B. tabaci population was recorded as 96.36% by Imidacloprid and Dimethoate, respectively; followed by Acetamiprid (91.95%), Bifenthrin (91.76%), and Cypermethrin (60.73%) at 7 DAS. Similarly, the population of A. gossypii was reduced to 98.46% by Dimethoate followed by Acetamiprid (94.66%), Bifenthrin (91.76%), Imidacloprid (91.67%), and Cypermethrin (41.76%) on the same day (7 DAS), respectively. The ANOVA indicates a significant difference (P<0.05) between various insecticides and day intervals. However, LSD showed a non-significant (P<0.05) difference between Imidacloprid and Dimethoate against B. tabaci and Imidacloprid and Bifenthrin against A. gossypii, respectively. It is concluded that the high population reduction of B. tabaci was observed after the application of Imidacloprid and Dimethoate insecticides at 7 DAS. Therefore, Acetamiprid and Bifenthrin insecticides were also displayed a significant reduction against the whitefly population. Similarly, the maximum reduction % of A. gossypii was showed after the spray of Dimethoate insecticide followed by Acetamiprid, Bifenthrin, and Imidacloprid insecticides on 7 DAS, respectively. The lowest reduction of B. tabaci and A. gossypii was seen on Cypermethrin insecticide on the same day.
A study was conducted at Vegetable Research Farm of Institute of Agricultural Sciences, Banaras Hindu University, Varanasi on bio-efficacy of newer insecticides i.e. Spinosad 2.5 SC@ 25 g a.i./ha, Alphamethrin 10 SC @ 50 g a.i./ha, Cypermethrin + Chlorpyrephos 55 EC @ 1100 g a.i. /ha, Cypermethrin 25 EC@ 75 g a.i./ha, Indoxacarb14.5 SC@ 350 g a.i./ha, Endosulphan 35 EC@ 450 g a.i./ha, Cartaphydrochloride 50 SP @ 400 g a.i./ha, and NSKE 5% @ 3250 g a.i./ha against diamondback moth (Plutella xylostella L.) on cauliflower crop during 2008-09 revealed that all the insecticide treatments were significantly superior over the control in term of higher yield and less infestation of diamondback moth. However, among the insecticidal treatments, comparative higher diamondback moth control and maximum marketable yield was recorded in treatments i.e. Spinosad 2.5 SC @ 25 g a.i./ha (59.71) followed by Indoxacarb 14.5 SC @ 350 g a.i./ha (53.56), Cypermethrin + Chlorpyrephos 55 EC@ 1100 g a.i. /ha (37.59), NSKE 5% @ 3250 g a.i./ha (36.33), Cypermethrin 25 EC @ 75 g a.i./ha (32.68), Alphamethrin 10 SC @ 50 g a.i. /ha, (30.20), Cartaphydrochloride 50 SP @ 400 g a.i./ha (27.96) and Endosulphan 35 EC @ 450 g a.i./ha (17.93).
2021
The major insect pests of summer squash are Red pumpkin beetle, fruit fly, flea beetle, whitefly, squash bug, melon aphid, etc. which effect in huge loss to farmers and thus discouraging the farmers for cultivation of crop. Hence, a field trial were conducted to find out the efficacy of various insecticides against the major insect pests of summer squash from December 2020 to May 2021, in Kanpur, Mandhana, U.P. The experiment was laid in single factor Randomized Complete Block Design (RCBD) with 4 replications. “Anna 303” variety of summer squash was used under study. Two different botanical insecticides i.e. azadirachtin (nimbicidine) 500ppm @ 5 ml/L, jholmol @ 1:5 concentration and two chemical insecticides i.e. imidachloropid 17.8 SL @1.5ml/l and spinosad 45SC @1ml/L was used as treatments of experiment. Normal water spray was used as control. The results revealed that, among all the insecticides evaluated at all the four spray. Imidachloropid and spinosad recorded the minimum nu...
Insecticides play an important role in the management of insect pests on ridged gourd (Luffa acutangula L.) or turia. The sweet potato whitefly, Bemisia tabaci Gennadius (Hemiptera: Aleyrodidae), thrips, Thrips spp. Karny (Thysanoptera:Thripidae), and fruit flies, Zeugodacus cucurbitae (Coquillett) and Bactrocera dorsalis (Hendel) (Diptera:Tephritidae) are the commonly found insect pests on turia in Ghana. These insect pests have been intercepted in some vegetables including turia exported into the European Union. The current study evaluated the efficacy of promising insecticides and lures for the management of these pests of quarantine importance on turia. The study was undertaken at a vegetable production site at Torgorme in the Volta region of Ghana during the dry and rainy seasons of 2017 and 2018, respectively. The experiment was laid out in a Randomized Complete Block Design with five treatments replicated four times. The treatments included use of Eradicoat T GH ® (Maltodextrin 282g/L) at 150 ml per 15L of water, Ecopel ® (Bacillus thuringiensis 32000 IU/mg at 25g/15L of water, Aqueous Neem Kernel Extract (ANKE) (Azadirachtin) at 50g/L of water, and Viper® (Acetamiprid 16g/l + Indoxacarb 30g/l) at 40ml /15L of water, and untreated control plot. Fruit fly traps with different pheromones or lures (i.e., Methyl Eugenol, Cuelure, Terpinyl Acetate and Trimedlure) were set at the four corners of the field to monitor the different species of fruit flies. Yellow sticky traps were also set within treatment plots to monitor pest populations. Whitefly population was significantly different among the treatments for both cropping seasons, while fruit fly population was not significant for both seasons. There was a significant difference in thrips population for the rainy season, however, it was not significant in the dry season. In a descending order, Acetamiprid 16g/l + Indoxacarb 30g/l and Azadirachtin were the most effective insecticides in controlling these pests on turia. There is, therefore, the need to alternate these two insecticides for effective management of pests on turia.
Journal of Agricultural Science and Technology A, 2016
The diamondback moth, Plutella xylostella L., has developed resistance to most insecticides used for its management. Suggested alternatives to forestall this process include biorational insecticides in mixtures with low-risk insecticides. The aim of this study was to select an insecticide or insecticide mixture that could be adopted by small-scale growers for diamondback moth management. The effectiveness of four insecticide mixtures, i.e., Agroneem ® Plus (neem-derived), Spinosad (microbial origin), thiamethoxam (neonicotinoid) and a homemade methanol Jalapeño pepper extract, in laboratory bioassays was evaluated. Binary mixtures were tested against single products at manufacturer's label rates. These were applied to collard greens using the leaf dip method and fed to the newly molted 2nd or 3rd instar larvae. Mixtures were evaluated for efficacy based on larval mortality and consumption of leaf discs. The results showed interactions between Jalapeño pepper extract and Spinosad and between the neem-derived Agroneem ® Plus and thiamethoxam at some of the tested concentrations. Mixtures with at any amount of Spinosad killed all larvae. The neem-based product gave inconsistent results in some treatments; in some case, increased leaf damage did not result in commensurate larval mortalities. The reported resistance of diamondback moth larvae to Spinosad was not observed during this study, neither with Spinosad alone nor in mixtures.
2014
Experiments were conducted to investigate the prevalence of Diamondback moth (Plutella xylostella) and to compare the efficacy of synthetic insecticides (Emamectin benzoate, Lufenuron and Lannate) and botanical extracts (Bakain & Neem) for the management of Plutella xylostella larvae in cauliflower during the year, 2012 at Agricultural Research Station Baffa Mansehra, Khyber Pakhtunkhwa. Completely Randomized Design (CRD) was used for laboratory bioassays while the field experiments were carried out in Randomized Complete Block Design (RCBD). Leaf dip bioassays were conducted to compare the relative effectiveness of the insecticides against larvae after 12, 24, 48 and 72 hours in laboratory. The results revealed that
Science Heritage Journal, 2020
Red pumpkin beetle, fruit fly, flea beetle, whitefly, squash bug, melon aphid, etc. are the major insect pests of summer squash resulting in a huge loss in quality and quantity to farmers A field trial was conducted to find out the comparative efficacy of various insecticides against the major insect pests of summer squash from January to June 2020 in Dhading district, Nepal. The experiment was laid in Randomized Complete Block Design (RCBD) with four different insecticides i.e. Imidachloropid 17.8 SL @1.5ml/l, Spinosad 45SC @1ml/L, Azadiractin (Nimbecidine) 500ppm @ 5 ml/L, Jholmol @ 1:5 concentrations, and normal water spray as control as five treatments. The treatments were replicated four times and ‘Anna 303’ variety of summer squash was used under study. The results revealed that, among all the insecticides evaluated at all the four sprays, Imidachloropid recorded the maximum reduction in the population of red pumpkin beetle (RPB) (about 90%), other insects (about 88%) and also...