Flight Behaviour and Activity Time of Tuta absoluta (Meyrick) Males Trapped on Tomato and Miscellaneous Crops, Gezira State, Sudan

Abstract Objective To analyze the application of concept nursing of accelerated rehabilitation surgery in orthopedic postoperative recovery. Methods A total of 120 patients who received orthopedic surgery were divided into the control group undergoing routine orthopedic nursing and the observation group undergoing the concept of accelerated rehabilitation surgery nursing. Results Patients in the observation group had shorter in-bed activity time and out-of-bed activity time, average time of hospital stay, and lower total treatment costs. The incidence of incision infection, respiratory system infection, digestive tract infection, urinary tract infection, deep vein thrombosis, and other complications in the observation group was much lower. The recovery scores of joint function in the observation group at 1, 3, 6, and 12 months after the operation were all better, and the recovery rate of joint function within 1 year after the operation was higher. Conclusion Following the concept of accelerated rehabilitation surgery nursing during the perioperative period can improve the quality of postoperative orthopedic recovery.

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Effects of some bioinsecticides on the tomato leaf miner, Tuta absoluta (Meyrick, 1917) (Lepidoptera: Gelechiidae)

Egyptian Journal of Biological Pest Control ◽

10.1186/s41938-020-00346-6 ◽

2021 ◽

Vol 31 (1) ◽

Author(s):

Alime Bayindir Erol ◽

Oktay Erdoğan ◽

İsmail Karaca

Keyword(s):

Mortality Rate ◽

Active Ingredient ◽

Metarhizium Anisopliae ◽

Mortality Rates ◽

Tomato Leaf ◽

Tuta Absoluta ◽

Leaf Miner ◽

Verticillium Lecanii ◽

Main Body ◽

Tomato Leaf Miner

Abstract Background In this study, commercial bioinsecticides including entomopathogenic fungi, Beauveria bassiana, Metarhizium anisopliae, and Verticillium lecanii, and Spinetoram active ingredient insecticide were evaluated against the tomato leaf miner, Tuta absoluta (Meyrick, 1917) (Lepidoptera: Gelechiidae) larvae. Main body The active ingredients were prepared at the recommended concentrations under laboratory conditions and applied to the 2nd instar larvae of T. absoluta by spraying with a hand sprayer. On the 1st, 3rd, 5th, and 7th days of the application, evaluations were made by counting survived individuals. The findings showed that the highest mortality rates were detected in the case of Spinetoram with 56, 60, 88, and 100% on all counting days of the experiments, respectively. The highest mortality rate among bioinsecticides was recorded for M. anisopliae, with 87% mortality on the 7th day of application. Short conclusion As a result, Spinetoram was found the most effective insecticide when applied to T. absoluta, followed by M. anisopliae.

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Distribution, abundance and natural enemies of the invasive tomato leafminer, Tuta absoluta (Meyrick) in Kenya

Bulletin of Entomological Research ◽

10.1017/s0007485321000304 ◽

2021 ◽

pp. 1-16

Author(s):

G. Kinyanjui ◽

F. M. Khamis ◽

F. L. O. Ombura ◽

E. U. Kenya ◽

S. Ekesi ◽

...

Keyword(s):

Natural Enemies ◽

Sustainable Management ◽

Management Strategies ◽

Tuta Absoluta ◽

Macrolophus Pygmaeus ◽

Larval Parasitoids ◽

Parasitism Rates ◽

Nesidiocoris Tenuis ◽

Sentinel Plants ◽

Open Fields

Abstract Tuta absoluta (Meyrick) has become a serious menace to sustainable production of tomato in Kenya. A survey was conducted between April 2015 and June 2016 to determine its distribution, abundance, infestation, and damage levels on tomato, and associated natural enemies. Trap counts of T. absoluta moths were recorded in all surveyed 29 counties, which indicated its nationwide distribution irrespective of altitude. Tuta absoluta was present in both open fields and greenhouses. The highest moth/trap/day was 115.38 ± 15.90. Highest leaf infestation was 92.22% and the highest number of mines and larvae per leaf were 3.71 ± 0.28 and 2.16 ± 0.45, respectively. Trap captures in terms of moth/trap/day were linearly and positively related to leaf infestations in open fields (R2 = 0.81) and greenhouses (R2 = 0.61). Highest fruits’ infestation and damage were 60.00 and 59.61%, respectively, while the highest number of mines per fruit was 7.50 ± 0.50. Nesidiocoris tenuis (Reuter) and Macrolophus pygmaeus (Rambur) were identified as predators of T. absoluta larvae. Nine species of larval parasitoids were recovered from infested foliage, with a combined parasitism of 7.26 ± 0.65%. Hockeria species was the most dominant (31.25%) and accounted for 12.88 ± 1.47% parasitism. Two species of larval parasitoids, Hockeria and Necremnus were obtained from sentinel plants with an average parasitism of 1.13 ± 0.25. The overall abundance and parasitism rates of recovered natural enemies were low to effectively control the field populations of T. absoluta. These findings form the basis of researching and developing effective and sustainable management strategies for the pest.

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Flight Behaviour of Nocturnally Migrating Birds in Coastal Areas: Crossing or Coasting

Journal of Avian Biology ◽

10.2307/3677169 ◽

1998 ◽

Vol 29 (4) ◽

pp. 499 ◽

Cited By ~ 75

Author(s):

Bruno Bruderer ◽

Felix Liechti

Keyword(s):

Coastal Areas ◽

Flight Behaviour ◽

Migrating Birds

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A minimal 3D model of mosquito flight behaviour around the human baited bed net

Malaria Journal ◽

10.1186/s12936-020-03546-5 ◽

2021 ◽

Vol 20 (1) ◽

Author(s):

Jeff Jones ◽

Gregory P D Murray ◽

Philip J McCall

Keyword(s):

Spatial Scales ◽

Video Tracking ◽

Sub Saharan Africa ◽

Bed Nets ◽

State Transitions ◽

Bed Net ◽

Flight Behaviour ◽

Individual Agent ◽

Host Seeking ◽

Mosquito Behaviour

Abstract Background Advances in digitized video-tracking and behavioural analysis have enabled accurate recording and quantification of mosquito flight and host-seeking behaviours, facilitating development of individual (agent) based models at much finer spatial scales than previously possible. Methods Quantified behavioural parameters were used to create a novel virtual testing model, capable of accurately simulating indoor flight behaviour by a virtual population of host-seeking mosquitoes as they interact with and respond to simulated stimuli from a human-occupied bed net. The model is described, including base mosquito behaviour, state transitions, environmental representation and host stimulus representation. Results In the absence of a bed net and human host bait, flight distribution of the model population was relatively uniform throughout the arena. Introducing an unbaited untreated bed net induced a change in distribution with an increase in landing events on the net surface, predominantly on the sides of the net. Adding the presence of a simulated human bait dramatically impacted flight distribution patterns, exploratory foraging and, the number and distribution of landing positions on the net, which were determined largely by the orientation of the human within. The model replicates experimental results with free-flying living mosquitoes at human-occupied bed nets, where contact occurs predominantly on the top surface of the net. This accuracy is important as it quantifies exposure to the lethal insecticide residues that may be unique to the net roof (or theoretically any other surface). Number of net contacts and height of contacts decreased with increasing attractant dispersal noise. Conclusions Results generated by the model are an accurate representation of actual mosquito behaviour recorded at and around a human-occupied bed net in untreated and insecticide-treated nets. This fine-grained model is highly flexible and has significant potential for in silico screening of novel bed net designs, potentially reducing time and cost and accelerating the deployment of new and more effective tools for protecting against malaria in sub-Saharan Africa.

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