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50 results for “Tuta absoluta”
A Deep Learning Dataset for Tomato Pest Leafminer TUTA ABSOLUTA
<p>The images of tomato leafminer (<em>Tuta absoluta</em>) were taken in in-house plots between August 2018 and May 2019 in Arusha, Tanzania. Under net-house that were controlled from other others. <em>T.absoluta</em> larvae were inoculated on the commonly grown tomato varieties at the early growth stage (herein, on the second day after transplanting). The images were taken for the first 2 weeks after inoculation. Images captured the canopy of the plants. </p> <p><strong>File Description</strong><br> All Images are in the <strong>.zip</strong> files; "dataset_1_H.zip" has 1926 Images, dataset_1_NH.zip has 325 Images, dataset_2 .zip has 3482 Images and the files labels are in "file_labels.csv" the image file name in column "FileName" and respective label in column "Label", labels meaning "1" refer to healthy (plants not inoculated with <em>T.absoluta</em> larvae and "2" refer to <em>T.absoluta</em> affected plants. A total of 4341 image files are labelled. </p> <p> </p>
Fig. 1 in Impacts of azadirachtin and chlorantraniliprole on the developmental stages of pirate bug predators (Hemiptera: Anthocoridae) of the tomato pinworm Tuta absoluta (Lepidoptera: Gelechiidae)
Fig. 1. Longevity (days ± SE) of nymphs of Amphiareus constrictus exposed to azadirachtin and chlorantraniliprole via three routes of exposure (ingestion, residue contact and direct spray). *Comparison between two bars is statistically significant (t-test, P <0.05).
Fig. 4 in Impacts of azadirachtin and chlorantraniliprole on the developmental stages of pirate bug predators (Hemiptera: Anthocoridae) of the tomato pinworm Tuta absoluta (Lepidoptera: Gelechiidae)
Fig. 4. Proportion of nymphs of Blaptostethus pallescens that reached the adult stage afer early exposure to azadirachtin and chlorantraniliprole via three routes of exposure (ingestion, residue contact and direct spray). *Comparison between two bars is statistically significant (survival analysis/log rank test, P <0.05).
Fig. 1 in Potential of biological control agents against Tuta absoluta (Lepidoptera: Gelechiidae): current knowledge in Argentina
Fig. 1. Relationships among the proportions of Tuta absoluta per tomato plant parasitized by Pseudapanteles dingus, or by Dineulophus phtorimaeae phthorimaeae or by both species (multiparasitism) at various densities of T. absoluta in 2 regions of Argentina, i.e., (a) La Plata, northern Buenos Aires province and (b) Tucumán. Relevant logistic regression parameters are shown in Table 2.
Fig. 5 in The effect of X-rays on cytological traits of Tuta absoluta (Lepidoptera: Gelechiidae)
Fig. 5. Eupyrene spermatozoa in the bursae copulatrices of females mated either with irradiated or with non-irradiated males. (a) Normal eupyrene spermatozoon; (b) abnormal eupyrene spermatozoon. Bar = 100 µm. Arrowhead indicates distinctive angle observed in abnormal eupyrene spermatozoa.
Fig. 6 in The effect of X-rays on cytological traits of Tuta absoluta (Lepidoptera: Gelechiidae)
Fig. 6. Ratio of normal, abnormal, and uncertain eupyrene spermatozoa relative to total eupyrene spermatozoa (mean ± SE) measured afer completion of copula.
Fig. 2 in The effect of X-rays on cytological traits of Tuta absoluta (Lepidoptera: Gelechiidae)
Fig. 2. Cytogenetic analysis of the F1 generation of irradiated males. (a) Male mitotic metaphase with chromosomal fragments and fusions; (b) male pachytene complement with chromosomal multivalents; (c) male metaphase I with multivalents and chromosomal fragments.Bar = 10 µm. Arrowheads indicate chromosomal fragments;arrow indicates multivalents;and asterisks indicate chromosome fusion.
Fig. 4 in The effect of X-rays on cytological traits of Tuta absoluta (Lepidoptera: Gelechiidae)
Fig. 4. Apyrene to eupyrene sperm ratios in irradiated and non-irradiated males. (a) Apyrene to eupyrene sperm ratio in males irradiated at different X-ray doses (mean ± SE); (b) ratio of normal eupyrene bundles relative to total sperm bundles (mean ± SE); (c) ratio of deformed eupyrene bundles relative to total sperm bundles (mean ± SE). Columns with different letters in graph are statistically different (P <0.05).
Fig. 3 in The effect of X-rays on cytological traits of Tuta absoluta (Lepidoptera: Gelechiidae)
Fig. 3. Cytogenetic analysis of eupyrene and apyrene sperm in Tuta absoluta. (a) Normal eupyrene sperm bundle; (b) apyrene sperm bundle; (c) deformed eupyrene sperm bundle. Bar = 100 µm. Arrow indicates eupyrene sperm nuclei; arrowhead indicates micronuclei.
Fig. 1 in The effect of X-rays on cytological traits of Tuta absoluta (Lepidoptera: Gelechiidae)
Fig. 1. Cytogenetic analysis of non-irradiated T. absoluta individuals. (a) Female mitotic metaphase; (b) male mitotic metaphase; (c) female pachytene complement with a WZ bivalent identified according to W-chromosome heterochromatin; (d) male pachytene complement; (e) a highly polyploid female nucleus of Malpighian tubule cells with a large sex chromatin body; (f) a male nucleus of Malpighian tubule cells without W chromatin. Bar = 5 µm (a,b); 10 µm (c,d); 20 µm (e,f). Arrowheads indicate largest chromosomes of the complement, i.e., W and Z sex chromosomes; and arrow indicates sex chromatin.
Fig. 5 in Inherited sterility in Tuta absoluta (Lepidoptera: Gelechiidae): Pest population suppression and potential for combined use with a generalist predator
Fig. 5. Prey consumption in the choice test involving progeny of irradiated females. Number of T. absoluta eggs consumed per T. cucurbitaceus (mean ± SE) individual in 24 h from the following T. absoluta eggs crosses, ♀U × ƋU and ♀I × ƋU. The different letters above the 2 error bars indicates that there was a significant difference in the numbers of eggs consumed based on the crosses from which they had originated, even though the female parent had been irradiated in 1 of the crosses (paired t tests, P <0.05). U = untreated, I = irradiated.
Fig. 3 in Inherited sterility in Tuta absoluta (Lepidoptera: Gelechiidae): Pest population suppression and potential for combined use with a generalist predator
Fig. 3. Prey consumption in the no-choice test. Number of T. absoluta eggs consumed per T. cucurbitaceus (mean ± SE) individual in 24 h from following T. absoluta eggs crosses: ♀U × ƋU,♀U × ƋI or ♀I × ƋU.The same letter above the 3 error bars indicates that there were no significant differences in the numbers of eggs consumed based on the crosses from which they had originated (ANOVA, P> 0.05). U = untreated, I = irradiated.
Fig. 1 in Inherited sterility in Tuta absoluta (Lepidoptera: Gelechiidae): Pest population suppression and potential for combined use with a generalist predator
Fig. 1. Population suppression by irradiated individuals and their progeny over 12 weeks at a 10:1 irradiated:untreated ratio. a) Number of eggs/ cage, b) number of small larvae /cage and c) number of large larvae/cage (mean ± SE). Only 1 release of irradiated moths was made, i.e., at the beginning of the experiment. For details see text on Experiment 1.
Fig. 4 in Inherited sterility in Tuta absoluta (Lepidoptera: Gelechiidae): Pest population suppression and potential for combined use with a generalist predator
Fig. 4. Prey consumption in the choice test involving progeny of irradiated males. Number of T. absoluta eggs from following T. absoluta eggs crosses, ♀U × ƋU and ♀U × ƋI,consumed per T. cucurbitaceus (mean ± SE) individual in 24 h. The same letter above the 2 error bars indicates that there was no significant difference in the numbers of eggs consumed based on the crosses from which they had originated, even though the male parent had been irradiated in 1 of the crosses (paired t tests, P> 0.05). U = untreated, I = irradiated.
Fig. 2 in Inherited sterility in Tuta absoluta (Lepidoptera: Gelechiidae): Pest population suppression and potential for combined use with a generalist predator
Fig. 2. Population suppression by irradiated individuals and their progeny over 12 weeks at a 15:1 irradiated:untreated ratio. a) Number of eggs/cage, b) number of small larvae /cage and c) number of large larvae/cage (mean ± SE). Only 1 release of irradiated moths was made, i.e., at the beginning of the experiment. For details see text on Experiment 2.
Figure 1 in The tomato leafminer, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae): pupal key characters for sexing individuals
Figure 1. Pupal stage of the tomato leafminer Tuta absoluta: A) dorsal, B) ventral, and C) lateral views.
Figure 2 in The tomato leafminer, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae): pupal key characters for sexing individuals
Figure 2. Ventral views of female and male pupae of the tomato leafminer. Abdominal segments indicated as 5th (A5), 6th (A6), 7th (A7), 8th (A8), 9th (A9), and 10th (A10).
Fig. 3 in Host range of the invasive tomato pest Tuta absoluta Meyrick (Lepidoptera: Gelechiidae) on solanaceous crops and weeds in Tanzania
Fig. 3. Tuta absoluta-related damage in solanaceous crops and weeds in Tanzania. Damage values are averaged across all survey locations (see Table 1). Damage was quantified as the number of T. absoluta mines per leaf (A) and percentage of T. absoluta-damaged fruits (B) in 10 locations within each sampled field. Six to 12 fields were sampled per crop, and 1 to 3 fields per weed species (see Table 2). Tomato, Solanum lycopersicum; eggplant or aubergine, Solanum melongena; African (Afr.) eggplant, Solanum aethiopicum; African (Afr.) nightshades, Solanum nigrum and Solanum americanum; pepper, Capsicum annuum; and 3 weed species, Datura stramonium, Nicandra physalodes, and Solanum incanum.
Fig. 1 in Host range of the invasive tomato pest Tuta absoluta Meyrick (Lepidoptera: Gelechiidae) on solanaceous crops and weeds in Tanzania
Fig. 1. Map of locations surveyed to determine host range and infestation level of Tuta absoluta in solanaceous crops and weeds in 2015. Four districts were targeted, each within the major tomato-producing regions of Tanzania. Within each district, 3 villages (indicated by black circles) were randomly selected for the survey (see Table 1).
Fig. 1 in First report of invasive South American tomato leaf miner Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) in Tajikistan
Fig. 1. Damage (%) of Tuta absoluta on tomato in Tajikistan during Mar to Aug 2016. (A) Dukoni Jamoat, (B) Hissor Jamoat, (C) Guliston Jamoat, (D) Ghayrat Jamoat.
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