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Seasonal occurrence of Liriomyza trifolii (Burgess) (Agromyzidae: Diptera) on tomato crop and its relation with weather parameters.
... These results are in agreement with Choudary and Rosaiah (2000) who revealed that the leaf miner commenced from the 3 rd week of November and reached a peak in the 4 th week of January. A second peak was observed in the second week of February. ...
... The obtained results are supported by Deepesh -Sharma et.al. (1997) who stated that the mean temperature of around 26 C. was most conducive for the population build-up of L.trifolii, while Choudary and Rosaiah (2000) mentioned that, the minimum temperature and evening relative humidity had a negative correlation. In addition a positive non-significant correlation between the seasonal abundance of L.trifolii and the maximum and minimum temperature. ...
... The analysis revealed that both current and one-lag wind speed had a negative influence on leaf miner incidence, while the number of rainy days (RainyD) exhibited a positive correlation. Additionally, the minimum temperature (MinT) and evening relative humidity (RHE) demonstrated a negative influence on the incidence of leaf miners, aligning with findings from a similar study by Choudary and Rosaiah (2000), which reported a negative correlation between minimum temperature and evening relative humidity with Liriomyza trifolii incidence in tomato. Notably, among all the weather variables analyzed, maximum temperature (MaxT) and current RainyD showed a highly significant positive effect on leaf miner populations. ...
... The present work's findings are consistent with those of Chakraborty (2011), who found that temperature, maximum relative humidity, and minimum relative humidity had a significant negative impact on the population of L. trifolii. According to Choudary and Rosaiah (2000), the population of L. trifolii in tomatoes was inversely connected with both the lowest temperature and the relative humidity in the evening. Similar results were obtained by Variya and Patel (2010), who discovered that sunshine and the highest temperature had a detrimental effect on the number of leaf miner larvae. ...
A field investigation was carried out to analyze the seasonal incidence of different insect pests and their natural enemies in tomato ecosystem along with their correlation with weather parameters from December, 2020 to April, 2021. A total number of 10 insect pests and 11 natural enemies were documented throughout the season. Among those insect pests recorded, tomato fruit borer, Helicoverpa armigera was the major one (49.91% relative abundance) followed by aphid, Aphis gossypii (18.62%), serpentine leaf miner, Liriomyza trifolii (16.20%) and whitefly, Bemisia tabaci (7.33%). Among the natural enemies, coccinellids were found abundantly and Coccinella transversalis recorded the highest relative abundance of 26.77% followed by Cheilomenes propinqua (10.23%), Cheilomenes sexmaculata (10.23%) and Coccinella septempunctata (9.44%). The findings of the experiment indicated that the maximum population of Helicoverpa armigera and L. trifolii was observed on the 10th SMW. While in case of A. gossypii it was observed on the 7th SMW respectively. The correlation between insect infestations and meteorological conditions demonstrated that the min temp. showed notable positive correlation with H. armigera and Aphis gossypii population and considerable negative correlation with L. trifolii. The max temp. showed noteworthy negative correlation with L. trifolii and Aphis gossypii. The morning relative humidity was found to possess significant positive correlation with L. trifolii and negative correlation with H. armigera. The evening relative humidity showed negative correlation with L. trifolii and Aphis gossypii. The study's findings provide a clear picture of the level of harm caused by insect pests in addition to helping us anticipate the seasonal occurrence of these pests for the purposes of pest monitoring and management.
... has significant influence on leaf miner and morning and evening relative humidity had nonsignificantly negative impact on L. trifolii population. Choudhary and Rosaiah [10] reported that evening rh was negatively correlated with incidence of L. trifolii. ...
A field experiment was conducted at Entomology research field, IANS, Deen Dayal Upadhyaya Gorakhpur University, Gorakhpur during Rabi, 2022, for studying the seasonal incidence of insect pests infesting tomato. Serpentine leaf miner, aphid appeared during 46th SMW and whitefly, jassid during 48th SMW, while fruit borer was observed during 2nd SMW. Correlation study revealed that Serpentine leaf miner, whitefly, aphid, jassid and fruit borer witnessed significant positive correlation with the maximum temperature and minimum temperature. Serpentine leaf miner and fruit borer recorded negative non-significant correlation with the morning relative humidity and evening relative humidity. Whitefly, jassid and aphid population had significant negative correlation with the morning relative humidity. Whitefly and jassid population registered a significant negative correlation with evening relative humidity. Aphid incidence had a non-significant negative correlation with the evening relative humidity. However, all the insect pests showed non-significant correlation with the rainfall.
... Senguttuvan (1999) [27] has reported a non-significant positive association of damage and leaf miner population with maximum and minimum temperature. Choudhary and Rosaiah (2000) [10] observed that the incidence of the leaf miner (L. trifolii) began in the third week of November and peaked in the fourth week of January. ...
... Sahil, Nova Mecb and Paket cultivars of tomato found resistant against fruit borer [38]. The Roma VFN, NARC-1 and FS-8002 genotypes were found susceptible due to rich in nitrogen content [40]. Tomato hybrids are more susceptible to leaf miner (L. ...
Vegetables are considered high value crops based on their growing areas and productivity, even if they are affected by a variety of insect pests throughout the whole growing season. Leaf miner is an immature of an insect that lives inside and consumes the leaf tissues of vegetable plants. Adult females of leaf miner puncture the leaf with their ovipositor, forming tube pattern, and feed on the punctured parts. Host plants survey of leaf miner in Multan (Pakistan) area was conducted. Twenty host plants were found in 2017, whereas twenty-four host plants were found infested with Liriomyza spp. (Diptera) in 2022 i.e., watermelon (24% infestation), long melon (75%), pumpkin (71%), round gourd (67%), snake melon (70%), bitter gourd (50%), long gourd (89%), bottle gourd (93%), pointed gourd (80%), snap gourd (86%), ridge gourd (83%), cucumber (98%), mung bean (98%), eggplant (60%), Petunia alba (88%), Zinnia elegies (30%), cotton (10%), okra (5%), berseem (7%), tomato (89%), Pea (52%) and Canola (28%). No infestation of leaf miners was observed on potato, chilies, and sweet potatoes. Color attraction results in 2017 and 2022 showed that there was maximum attraction of tomato leaf miner towards yellow sticky cards as compared to blue sticky cards. Varietal preference of tomato crop showed that Baby red variety was the most preferred by leaf miner (Liriomyza spp.), and comparatively Sehar was the least preferred variety. Field efficacy of four different insecticides against leaf miner were also tested. Insecticidal effects attributed as percent reduction of leaf miner infestation that showed the highest reduction values were observed after 7 DOA for Spinetoram (76.98%), whereas Bifenthrin (57%). Deltaphos (43 %) was the least toxic insecticide against Liriomyza spp. Integrated approaches are recommended to manage vegetable leaf miner like application of yellow sticky traps, discouraging preferred host plants, application of insecticides with novel modes of actions like spintoram and spinosad for effective management.
... Leaf miner (L. trifolii) incidence exhibited positive correlation with wind velocity [6] . Relative humidity (morning and evening) had a positive non-significant correlation with the per cent mined leaves of L. trifolii [10] . ...
Experiment was undertaken during the year 2016-17 at Instructional Farm, Department of Agronomy, College of Agriculture, Junagadh Agricultural University, Junagadh to determine the population dynamics of leaf miner Liriomyza trifolii (Burgess) and whitefly Bemisia tabaci (Gennadius) on tomato. The results showed that leaf miner (Liriomyza trifolii) oriented mined leaves per plant damage peaked (7.20% /plant) during 4 th SMW (Standard Meteorological Week) while, it was lowest (0.42%) during 13 th SMW. Leaf miner oriented mines per five leaves per plant damage peaked (0.78% /five leaves/plant) during 4 th SMW while, it was lowest (0.14%) during 52 th SMW. Whitefly (Bemisia tabaci) population remained highest (7.67/three leaves) during 4 th SMW while, it remained lowest (0.47) during 13 th SMW. Relationship between leaf miner oriented mined leaves per plant and weather factors indicated significant negative correlation with temperature (maximum and minimum) ('r'=-0.590* and-0.522*) and relative humidity (morning and evening) ('r'= 0.264 and 0.511) indicated positive correlation (non-significant) with the pest abundance. Relationship between leaf miner oriented mines per five leaves per plant and temperature (maximum and minimum) ('r'=-0.370 and-0.330) indicated non-significant negative correlation. However, relative humidity (morning and evening) ('r'= 0.017 and 0.315) indicated positive correlation (non-significant) with the pest abundance. Abundance of whitefly population with relative humidity (morning and evening) ('r'= 0.168 and 0.437) indicated non-significant positive correlation. While, temperature (maximum and minimum) ('r'=-0.561* and-0.515*) indicated negative but significant correlation with the pest abundance.
... The multiple Correlation Coefficient (R = 0.9545) was also found non-significant. Choudary and Rosaiah (2000) found that leaf miner L. trifolii incidence exhibited positive correlation with wind velocity and sun shine. Chaudhuri and Senapati (2004) reported incidence of L. trifolii exhibiting non-significant and positive correlation with average relative humidity. ...
Incidence of Leaf miner Liriomyza trifolii in tomato
... The multiple Correlation Coefficient (R = 0.9545) was also found non-significant. Choudary and Rosaiah (2000) found that leaf miner L. trifolii incidence exhibited positive correlation with wind velocity and sun shine. Chaudhuri and Senapati (2004) reported incidence of L. trifolii exhibiting non-significant and positive correlation with average relative humidity. ...
Investigations on 'Incidence of leaf miner (Liriomyza trifolii Burgess) on tomato crop in relation to the climatic conditions of South Gujarat' were carried out at experimental farm, Navsari Agricultural University, Navsari, Gujarat during Rabi 2014-15. Incidence of leaf miner (Liriomyza trifolii Burgess) was recorded standard week wise throughout the course of investigation. Leaf miner oriented leaf damage peaked (11.03 % /plant) during 11 th SMW while, it was lowest (0.03%) during 1 st SMW. Correlation of leaf miner oriented leaf damage (%) was significant and positive with minimum temperature ('r'=0.600) and bright sun shine ('r'=0.578) indicating 61.47 per cent variation due to these factors.
... Similar findings on the status of L. trifolii as minor pest of tomato and cucumber are available from Himachal Pradesh (Anon, 2011) and Karnataka under protected environment . In Andhra Pradesh, very high incidence of L. trifolii (83.30% leaf infestation) has been recorded on tomato, under field conditions (Choudary and Rosaiah, 2000). Infestation of T. tabaci on carnation was recorded in Mandi and Bilaspur districts. ...
Surveys were conducted in four districts of Himachal Pradesh, viz., Bilaspur, Hamirpur, Kangra and Mandi covering 82 poly-houses to ascertain the insect-pest problems associated with capsicum, tomato, cucumber, pea, cole crops, carnation, rose, etc. eight species of insects, i.e. Trialeurodes vaporariorum (Westwood), Myzus persicae (sulzer), Spodoptera litura (F.), Helicoverpa armigera (hübner), Plutella xylostella (L.), Liriomyza trifolii (burgess), Thrips tabaci (lindeman) and Frankliniella sp. were commonly observed in poly-houses but their population remained low.
Abstract- The field incidence of the serpentine leaf miner, L. trifolii(Burgess) was severe during the fruiting stage of the crop and infestation was higher on lower surface of leaf in comparisons of upper surface. On the basis of cumulative susceptibility index test varieties viz. HS-102, SEL-14, Pant T-4, PS-8, PT-28, NDT-44, BT-117-5-3-1, Pusa Ruby (Check), KS-118, Pant Bahar, CO-3, Pant Hybrid-1, BBs-109, NTH-337, BRH-01, ARTH-04, BS-2530, NDT-9, Meenakshi-H1, Punjab Chhuhara, NDT-96 were found to be resistant/less susceptible. Only nine test cultivars viz. BT-20-1-4, KS-2, PT-3, Sweet-72, Pant Hybid-2, TH-2312, Ratna, Avinash, Sohali were found to be moderately susceptible/moderately resistant. No cultivar was found highly susceptible against leaf miner. No significant correlation could be established between the number of leaf mines and yield of tomato crop. Although yields differ significantly between different varieties, probably compensation for leaf injury played a major role in yield recovery.
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