scholarly journals Field Evaluation of Plant Extracts for the Control of Diamond Moth (Plutella xylostella Linnaeus) Infesting Cabbage (Brassica oleracea Linn)

2014 ◽  
Vol 16 ◽  
pp. 164-178
Author(s):  
Adeola Foluke Odewole ◽  
Timothy Abiodun Adebayo
Keyword(s):  
Brassica Oleracea ◽  
Plant Extracts ◽  
Field Experiments ◽  
Insect Pests ◽  
Block Design ◽  
Diamondback Moth ◽  
Field Evaluation ◽  
Significant Difference ◽  
Unsprayed Plot ◽  
Negative Controls

Cabbage (Brassica oleracea Linn.) is one of the important vegetables grown worldwide. Insect pests have been a major constraint to its production with some reported to have developed resistance to commonly available synthetic insecticides. In order to find alternative control for these pests, field experiments were conducted in the early seasons of 2011 and 2012, to evaluate the efficacy of three plant extracts, Tephrosia vogelli Hooks, Zingiber officinales Rosh and Lantana camara Spanish flag, applied at 5, 10 and 25 % w/v concentrations Delthamethrin (a synthethic insecticide) and an unsprayed plot were included as positive and negative controls respectively. Plots were arranged in a Randomized Complete Block Design (RCBD), with three replications. Mean Data over the two planting seasons were subjected to the analysis of variance and significant means were compared using the least significant difference (L.S.D) at P < 0.05. Z. officinales extract effectively control P. xylostella larvae at all concentrations with 25 % w/v gave the best yield of 0.50 kg/ha while T. vogelii and L. camara extracts were as effective as Deltamethrin at different concentrations and hours on diamondback-moth (P. xylostella) adult The present findings indicated that effective botanicals against Diamondback moth adult and larvae of cabbage can be formulated from extract of T. vogelii, L. camara and Z. officinales at 25 % concentration respectively.

scholarly journals Field evaluation of water plant extracts on sucking insect pests and their associated predators in transgenic Bt cotton

2019 ◽  
Vol 29 (1) ◽  
Author(s):  
Muhammad Arshad ◽  
Muhammad Irfan Ullah ◽  
Naciye Sena Çağatay ◽  
Asad Abdullah ◽  
Fatma Dikmen ◽  
...  
Keyword(s):  
Plant Extracts ◽  
Insect Pests ◽  
Field Evaluation ◽  
Bt Cotton ◽  
Transgenic Bt Cotton ◽  
Water Plant

scholarly journals Weed infestation and productivity of maize/soybean intercrop as influenced by cropping patterns in the southern Guinea savanna of Nigeria

2018 ◽  
Vol 63 (1) ◽  
pp. 11-26
Author(s):  
Emmanuel Imoloame ◽  
Kafayat Ahmed
Keyword(s):  
Field Experiments ◽  
Block Design ◽  
Growth And Yield ◽  
State University ◽  
Economic Returns ◽  
Cropping Patterns ◽  
Guinea Savanna ◽  
Significant Difference ◽  
Weed Infestation ◽  
Cropping Seasons

Field experiments were conducted during the 2015 and 2016 cropping seasons at the Teaching and Research (T & R) Farm of the College of Agriculture, Kwara State University, Malete, to determine the effect of cropping patterns on weed infestation, growth and yield of a maize/soybean intercrop in the southern Guinea savanna of Nigeria. The experiments consisted of six treatments as follows: one row of maize alternated with one row of soybean (1:1), one row of maize alternated with two rows of soybean (1:2), two rows of maize alternated with one row of soybean (2:1), two rows of maize alternated with two rows of soybean (2:2), sole maize (1:0) and sole soybean (0:1). The treatments were laid out in a randomized complete block design with three replicates. Data collected were subjected to analysis of variance and means were separated by the least significant difference (LSD) at the 5% level of probability. Results showed that sole soybean consistently suppressed weeds and resulted in a higher yield. Similarly, the 2:1 ratio of maize to soybean did not only reduce weed density, it produced significantly higher yields of maize and lower yield of soybean, and had the higher land equivalent ratio and economic returns followed by sole maize.

scholarly journals Control of field insect pests of mung bean (Vigna radiata L. Wilczek) using some plant extracts in Umudike, Nigeria

2018 ◽  
Vol 2 (1) ◽  
Author(s):  
Elechi F. Asawalam ◽  
Ekemezie Constance
Keyword(s):  
Plant Extracts ◽  
Azadirachta Indica ◽  
Vigna Radiata ◽  
Mung Bean ◽  
Insect Pests ◽  
Curcuma Longa ◽  
Block Design ◽  
Field Trials ◽  
Population Densities ◽  
Cropping Seasons

Field trials were conducted at Umudike, Nigeria, during the 2015 and 2016 cropping seasons to determine the efficacy of plant extracts from seven plant species against field insect pests of mung bean, Vigna radiata L. Wilczek. The extracts tested were obtained from scent leaf (Ocimum gratissimum), neem leaf (Azadirachta indica), bitter leaf (Vernonia amygdalina), garlic (Allium sativum), turmeric (Curcuma longa), plantain (Musa paradisiaca) peel and Negro pepper (Xylopia aethiopica). Karate (Lambda-cyhalothrin EC) at 50 mL was introduced as a check in the trials. The experimental design was a randomised complete block design (RCBD) with three replicates. Data were collected weekly on the insect population densities, yield and yield components. The results indicated that all the treatments were effective against mung bean insect pests (Aphis craccivora [aphid], Bemisia tabaci [whitefly], Amrasca biguttula biguttula [jassid] and Zonocerus variegatus[grasshopper]). There was a significant (p ≤ 0.05) reduction in the population of insects on the plots treated with plant extracts and karate in 2015 and 2016 cropping seasons. The population densities of grasshoppers in 2015 and whitefly in 2016 were significantly lower in the treated plots compared with the control plots. Azadirachta indica and C. longa extracts recorded the highest seed yield of 50.00 kg/ha and 42.33 kg/ha in 2015 and 2016, respectively. No significant differences were observed between the plant extracts and karate, which recorded significantly higher yields when compared with the control (23.30 kg/ha). All the plant extracts used exhibited insecticidal activity against the insect pests of mung bean. It is, therefore, recommended that these plant extracts can be used for the control of mung bean insect pests to achieve sustainable production, food security and quality.

scholarly journals FIELD EVALUATION OF FIVE WHEAT VARIETES AGAINST INSECT PEST INFESTATION

2021 ◽  
Vol 5 (9) ◽  
Author(s):  
Dhananjoy Kumar Mahato ◽  
Md. Mizanur Rahman ◽  
Sadhan Kumer Guha Magumder ◽  
Kazi Md. Abu Sayeed ◽  
Md. Abu Zafur Al Munsur
Keyword(s):  
Insect Pests ◽  
Block Design ◽  
Insect Pest ◽  
Wheat Variety ◽  
Field Evaluation ◽  
Grain Filling ◽  
Leaf Beetle ◽  
Filling Stage ◽  
Physical Resistance ◽  
Grain Filling Stage

The experiment was conducted to evaluate the infestation status of insect pest on different wheat variety. Five wheat variety (BARI GOM -24, BARI GOM-25, BARI GOM-27, BARI GOM-28and BARI GOM-29) were used as a test crop to conduct the study. The experiment was laid out in Randomized Complete Block Design with three replications. Total 5 insect pests were found from this experiment among wheat aphid and wireworm as major and leaf hopper, grass hopper and cereal leaf beetle as minor insect of wheat. The highest insect pest was found in grain filling stage and lowest was found in panicle initiation stage. In grain filling stage, the lowest number of aphid (6.26) was recorded from BARI GOM-29 and the highest number of wheat aphid (9.11) was found in BARI GOM-24. Effect of different varieties of plant height, filled grain, unfilled grain, weight of 1000 grain and yield showed significant. The highest yield (3.56 tha-1 ) was recorded in BARI GOM-29 and the lowest yield 2.29 tha-1 was recorded in BARI GOM-25. The highest percentage of infested spike hill-1 was recorded in BARI GOM-27 and lowest was found in BARI GOM-29. The lowest yield loss (31.53%) was recorded in BARI GOM-29. This is might be due to physical resistance of the varieties. BARI GOM-29 recommended to wheat growers as it is found the most resistant/tolerant wheat cultivar against wheat insect pest with maximum grain yield as compared to other cultivars.

scholarly journals Comparative Efficacy of Plant Extracts with Synthetic against Insect Pests of Okra (Abelmoschus esculentus L. Monech)

2014 ◽  
Vol 19 ◽  
pp. 52-58 ◽  
Author(s):  
Adeola Foluke Odewole ◽  
Fatai Olaitan Alao ◽  
Adedayo Akeem Agboola ◽  
Bolawaye Folakemi Adedapo
Keyword(s):  
Synergistic Effect ◽  
Plant Extract ◽  
Plant Extracts ◽  
Insect Pests ◽  
Block Design ◽  
Comparative Efficacy ◽  
Synthetic Insecticide ◽  
Randomized Complete Block Design ◽  
Cropping Seasons ◽  
Better Than

A field study was carried out during the two cropping seasons of okra to investigate the efficacy of plant extracts and synthetic insecticides applied singly and synergistic effect of botanicals with the synthetic insecticide on some insect pests of okra. Plots were arranged in a Randomized Complete Block Design (RCBD), with three replications. Three insect pests of okra (Podagrica uniformis, Podagrica sjostedti and Zenocerous variegatus) were observed on the field. Cypermethrin applied singly and Cypermethrin combined with plant extracts effectively controlled observed insect pests, followed by lone application of plant extracts (L camara, T. vogelii and Z. officinales plant extracts at 1st and 2nd season. Okra yield revealed that both plant extract and Cypermethrin combined with plant extract were not significantly different from one another at first season and at second season Cypermethrin combined with plant extracts performed better than Cypermethrin applied singly. This study indicates that the studied plant extracts can be good synergist for Cypermethrin in controlling field pest of okra.

scholarly journals Biological Test of Formulation of Subculture Helicovepa armigera Nuclear Polihedrosis Virus (HaNPV) on Mortality of Spodoptera litura Larvae infested to cabbage (Brassica oleracea Var. capitata Linn.) Plantation

2015 ◽  
Vol 2 (1) ◽  
pp. 646
Author(s):  
Desy Efriyani Anggraeny Nasution ◽  
Mia Miranti ◽  
Melanie .
Keyword(s):  
Brassica Oleracea ◽  
Helicoverpa Armigera ◽  
Spodoptera Litura ◽  
Nuclear Polyhedrosis Virus ◽  
Insect Pests ◽  
Block Design ◽  
Economic Value ◽  
Helicoverpa Armígera ◽  
Polyhedrosis Virus ◽  
Nuclear Polyhedrosis

<p>Helicoverpa armigera Nuclear Polyhedrosis Virus (HaNPV) is one of the biological agents that could be used for the development of organic farming in Indonesia. One of the organic agricultural food products which have high economic value is cabbage, HaNPV effectif to control the population of several species of insect pests, can be used instead of synthetic insecticides in agricultural development efforts of organic cabbage. HaNPV formulation can be used as a way to maintain the virulence properties of the virus and facilitate the storage and application. The preparation of subculture HaNPV formulations was in liquid, powders, cornstarch and talk carrier material. The design experimental was used randomized block design consists single factor (type HaNPV formulation consisting of powder formulations, liquid formulation, formulation in cornstarch, and talc formulation including water formulation without virus as a control), with eight replications. The results showed that all of the formulations of subculture HaNPV causing larvae mortality at range 97.4% -100%. The highest mortality of larvae occurred in cabbage plants are protected by HaNPV carrier liquid and talk preparations by 100% each. <br /><strong></strong></p><p><strong>Keywords</strong>: Formulations Helicoverpa armigera Nuclear Polyhedrosis Virus (HaNPV), subculture, Spodoptera litura, Brassica oleracea Var. capitata Linn.</p>

scholarly journals Keefektifan tiga jenis perangkap serangga untuk deteksi serangga hama gudang yang menyerang bungkil kopra

2020 ◽  
Vol 17 (1) ◽  
pp. 1
Author(s):  
Diana Budiman ◽  
Dadang Dadang ◽  
Idham Sakti Harahap
Keyword(s):  
Laboratory Experiment ◽  
Insect Pests ◽  
Block Design ◽  
Light Trap ◽  
Pitfall Trap ◽  
Insect Species ◽  
Copra Meal ◽  
Uv Led ◽  
Significant Difference ◽  
Storage Facilities

<p>Stored product insect can cause consumer rejection and economic loss due to quality concerns and  phytosanitary regulation. Insect traps have been regularly used as a control method, however its effectiveness on controlling stored copra meal insect pests is not yet known.This study was carried out to compare the effectiveness of three types of insect traps for detection of insect pests of copra meal.The three types of insect traps were pitfall trap, probe trap, and ultraviolet (UV) light trap (blacklight and LED-light emiting diodes). Research was conducted at Laboratory of Entomology SEAMEO BIOTROP, Bogor and two storage facilities of copra meal in North Sulawesi. Laboratory experiment was conducted using completely randomized design with two factors and four replications. The first factor was the types of insect traps (pitfall trap, probe trap, and probe trap with UV LED) and the second factor was insect species (<em>Lasioderma serricorne</em> (Herbst) and <em>Tribolium castaneum </em>(Fabricius)). The experiment at storage facilities was conducted with nested block design where the insect species trapped were nested in the insect traps. The result of laboratory experiment showed that the probe trap captured more insects (30.4%) significantly higher than pitfall trap (17.1%), however there was no significant difference of number of insects trapped in probe trap with and without UV LED. In addition the probe trap captured more <em>T. castaneum</em> and <em>Tenebroides mauritanicus</em> than other type of insects trap, but probe trap with UV LED was more effective to detect <em>L. serricorne</em> and <em>Necrobia rufipes</em> (Fabricius) in the stored copra meal.</p>

scholarly journals Insecticidal and growth regulatory effect of Jatropha curcas and Linum usitatissimum extracts along with new chemistry pesticide spinetoram against Sargodha strain of Rhyzopertha Dominica

2021 ◽  
Vol 17 (3) ◽  
pp. 137-143
Author(s):  
Bushra Moon ◽  
Mahwish Razzaq ◽  
Muhammad Haseeb ◽  
Sania Iftikhar ◽  
Marriyam Mushtaq ◽  
...  
Keyword(s):  
Plant Extracts ◽  
Jatropha Curcas ◽  
Linum Usitatissimum ◽  
Growth Regulation ◽  
Insect Pests ◽  
Research Training ◽  
Maximum Growth ◽  
Rhyzopertha Dominica ◽  
Significant Difference ◽  
Percent Mortality

Store grain insect pests such as Lesser grain borer (Rhyzopertha dominica) is a key feeder and cause substantial weight loss of wheat during storage. Present study was planned to evaluate insecticidal, repellent and growth regulator potential of botanical extracts of two plants Jatropha curcas and Linum usitatissimum along with Spinetoram against Rhyzopertha Dominica. This study was conducted at the Department of Entomology, University of Agriculture, Faisalabad (UAF) Grain Research, Training, and Storage Management Cell. Each treatment with three replication of 5%, 10%, and 15% concentrations of plant extracts and 100ppm, 200ppm, and 300ppm concentrations of insecticide were used against the adults of R. dominica by using Complete Randomized Design. Insect mortality was taken after 24, 48, and 72 hours after treatment. Data of growth regulation data was observed after 30 and 60 days. Data was analyzed by statistic 8.1 software for analysis of variance at 5% level of significance and treatment means was compared with the help of Tukey's Honestly Significant Difference (THSD) test. After 72 hours, Spinetoram showed maximum percent mortality (84%) followed by J. curcas (19.17%) and L. usitatissimum (12.28%) at their higher concentrations rate. Among treatments, after 60 days of exposure, Spinetoram was proved to be more effective against the R. dominica with maximum growth inhibition (70%) as compared to J. curcas (44%) and Linseed (28%). Overall the results indicated that these plant extracts and Spinetoram can be used as efficient alternatives of synthetic chemicals for management of stored grains insect pests.

scholarly journals Comparative Efficacy of Tephrosia vogelii and Moringa oleifera against Insect Pests of Watermelon (Citrullus lanatus Thumb)

2015 ◽  
Vol 51 ◽  
pp. 5-12 ◽  
Author(s):  
F.O. Alao ◽  
T.A. Adebayo
Keyword(s):  
Plant Extracts ◽  
Moringa Oleifera ◽  
Insect Pests ◽  
Block Design ◽  
Phyllotreta Cruciferae ◽  
Insecticidal Efficacy ◽  
Randomized Complete Block Design ◽  
Tephrosia Vogelii ◽  
Set Up ◽  
Fast Acting

Despite the fact that synthetic insecticides are fast acting, they constitute environmental hazard thereby necessitating the use of ecologically based alternative such as plant based insecticide. This experiment was conducted during the late and early planting seasons of 2011 to determine the insecticidal efficacy of Tephrosia vogelii and Moringa oleifera extracts at three tested concentrations (5, 10 and 20% v/v) against insect pests of watermelon. The experiment was set up in a randomized complete block design with three replicates. The results showed that M. oleifera extracts had 62% reduction of Phyllotreta cruciferae compared with T. vogelii which had 45% control. However, T. vogelii extracts had 64% control of Diabrotica undecimpunctata and Bactrocera curcubitea but M. olefera extracts had 50% control. The plant extracts proved effective against studied insects when compared with untreated plots. However, the effectiveness of the two plants extracts were concentration dependent. Therefore, the two plant extracts can be used in the control of insect pests of the watermelon

scholarly journals Management of Snap Bean Insect Pests and Diseases by Use of Antagonistic Fungi and Plant Extracts

2017 ◽  
Vol 6 (3) ◽  
pp. 52 ◽  
Author(s):  
James Muthomi ◽  
A. M. Fulano ◽  
J. M. Wagacha ◽  
A. W. Mwang’ombe
Keyword(s):  
Plant Extracts ◽  
Field Experiments ◽  
Insect Pests ◽  
Integrated Management ◽  
Trichoderma Spp ◽  
Snap Bean ◽  
Antagonistic Fungi ◽  
Pests And Diseases ◽  
Snap Beans ◽  
Set Up

Use of synthetic pesticides reduces the competitiveness of Kenyan snap bean pods due to stringent regulations by importers as a result of presence of chemical residues. This study was conducted to determine the effectiveness of local biopesticides in managing insect pests and diseases of snap beans. Field experiments were set up in farmer's field where Trichoderma spp. and Paecilomyce spp. and plant extracts from turmeric, garlic, ginger and lemon were applied weekly as foliar sprays. Plant extracts reduced the population of whiteflies and thrips by up to 58% and 41% while antagonistic fungi had a corresponding 30% and 18% reduction, respectively. Trichoderma spp. reduced severity of angular leaf spot (37.5%), rust (67%) and anthracnose (20.7%). Plant extracts and antagonistic fungi increased marketable pod yield by 25.6% and 17.3%, respectively. Results demonstrated that local environments are potential sources of biopesticides that can be exploited for integrated management of pests and diseases. 

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