GRAMTICA NILSON TEIXEIRA DE ALMEIDA PDF

GRAMTICA NILSON TEIXEIRA DE ALMEIDA PDF

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Insecticide effect of cyantraniliprole on tomato moth Tuta absoluta Meyrick Lepidoptera: Gelechiidae larvae in field trials.

tsixeira Directory of Open Access Journals Sweden. Gelechiidae has traditionally been managed in Chile with organophosphate, pyrethroid, and nereistoxin insecticides; all of these have wide action spectra and high toxicity and many of them have developed rapid resistance.

It is therefore important to have new molecules which are effective in controlling this pest; how ever, these molecules must have lower toxicity and greater selectivity for beneficial fauna to produce a more sustainable tomato Solanum lycopersicum L.

The objective was to evaluate the effectiveness of T. These trials evaluated the control of T. Trials used a randomized complete block design with gramtia replicates.

The effect of treatments was compared with standard insecticides and a control without insecticide.

The degree of control was estimated by foliar and fruit damage at harvest. It is concluded that both formulations of cyantraniliprole were effective to reduce damage caused by the tomato moth larva in both the foliage and fruit of tomato. Gelechiidae, is a economically important pest of processed and fresh tomatoes, both in greenhouses and open field crops. Currently, the pest threatens other cultivated solanaceous plants such as eggplant and potato.

In this article nlison review pheromone control strategies for species-specific and environmentally safe management of the tomato leafminer, Tuta absoluta Lepidoptera: This teixiera pest originates from South America and is now considered to be one of the most damaging invasive pests of tomatoes in the Mediterranean Basin countries of Europe aomeida North Africa.

In this article we describestrategies used to control T. Monitoring of Tuta absoluta was carried out in Imbabura Province in Ecuador. The parameters of using the pheromone traps Delta VI are described.

Almeidaa studies on Trichogrammatoidea bactrae Nagaraja Hymenoptera: Trichogrammatidaeegg parasitoid of Tuta absoluta Meyrick Lepidoptera: The tomato moth, Tuta absoluta Meyrickis one of the most important tomato pests in South America.

In Argentina, management strategies include only chemical control. In this work, the parasitoid wasp Trichogrammatoidea bactrae Nagaraja was evaluated as a potential natural enemy against this pest.

Three cohorts of T.

Geixeira following parameters were estimated for each cohort: Survival of the T. The female survival curves corresponded to type III and showed no significant differences among treatments. The three cohorts did not show significant differences between sex ratio, female longevity, oviposition period, fecundity and the population parameters studied.

These results indicate that T. Full Text Available The tomato leafminer Tuta absoluta represents a serious problem for the tomato crop, not only due to the intensity of its attack, but also to its occurrence during all the crop cycle. In Brazil, this pest has been controlled almost exclusively with insecticides, what is undesirable for economic and environmental reasons.

The treatments used were: The experimental design used was randomized complete blocks with four replications. The parameter to evaluate treatment capture efficiency was the counting of the adult T. The results showed that the BLB and ultraviolet lamps were the most efficient treatments. Therefore, both can help to control nklson tomato leafminer in integrated pest management programs. Tomato pinworm; integrated pest management; tomato.

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absoluta meyrick lepidoptera: Topics by

Full Text Available The technology based on the use of silicon reduces pesticide use, keeping fruit quality and protecting the environment. This study evaluated the effects of different sources and levels of silicon applied on tomato plants, on biological and behavior characteristics of the tomato pinworm Tuta absoluta.

The biological characteristics evaluated, were: The non-preference for oviposition of T. There were no differences observed in the length of larval and pupal stages, survival of larvae and pupae, pupal weight of males and females of T. However, insects collected from treatments based on leaf application silicon showed an increase in the duration the larval and pupal stages, decreased survival of larvae and pupae, decreased pupae weight of males and females and a decrease in oviposition preference.

Evaluation of some microbial agents, natural and chemical compounds for controlling tomato leaf miner, Tuta absoluta Meyrick Lepidoptera: Full Text Available Solanaceous plants have a great economic impact in Egypt. These groups of plants include potatoes, tomatoes and eggplants. After its detection in Egypt nillson the last half ofit spread quickly to all provinces in the country. We almeidx to propose a sustainable control program for this devastating pest.

In this research we tested three groups of control agents. The first was microbial and natural, the second – plant extracts and the third – chemical insecticides.

CiteULike: sobolevnrm’s library

Our results showed that the impact of T. Bioassay experiments showed that this devastating pest can be controlled with some compounds that give high mortality rates. Of these compounds, spinosad and Beauveria bassiana, microbial control agents, followed by azadirachtin, gave the best results in controlling T.

Of the chemical insecticides, lambda-cyhalotrin was the most effective, followed by lufenuron and profenofos. In conclusion we encourage farmers to use microbial and natural control measures in combating the tomato leafminer, T. Dichloromethane DIC leaf and fruit extracts of Trichiliapallida Swartz were obtained for the isolation and identification of molecules with insecticide activity against the tomato leafminer, Tuta absoluta Meyrick.

DIC leaf extracts of T.

sobolevnrm’s library

These molecules were dissolved in acetone and sprayed at 0. Larval mortality at day 5 and 9 after infestation, larval and pupal developmental time and survival, pupal weight and adult malformation were evaluated.

Full Text Available Introduction: Gelechiidae, is an important pest on tomato, potato and other Solanaceous with a great economic importance. Tomato borer can be regarded as a serious threat to tomato production in Iran.

TLM larvae act as leaf gfamtica, and in high numbers, they can totally destroy the plant foliage; TLM graamtica can destroy crop production early on by infesting both developing and ripe fruits. Management of the pest can be problematic, particularly when the infestation pressure is high.

One of the main tools in its management is the use of conventional synthetic insecticides, however, this overreliance on the use of synthetic insecticides quickly leads to problems of insecticide resistance. The use of natural compounds such as plant essential oils is considered as alternatives to chemical pesticides due tteixeira their lower toxicity on the non-target and low persistence in the environment.

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In recent years essential oils of medicinal plants have received much attention nilsoj pest almsida chemical agents. The discovery of active compounds that are less persistent will be beneficial for both the environment and agricultural product consumers. The egg, 2nd larval instars, and adult of TLM were used to determine the fumigant toxicity of the C.

The essential oil of aerial parts of C. Conditions of extraction were: The fumigant toxicity of essential oil on larvae 2nd inside leaf and egg were tested in macro plastic container volume ml, The vials were contained leaves containing larvae. Intensity of Tuta absoluta MeyrickLepidoptera: Gelechiidae and Liriomyza spp.

Agromyzidae attacks on Lycopersicum esculentum Mill. Leaves Intensidade de ataque de Tuta absoluta MeyrickLepidoptera: Gelechiidae e de Liriomyza spp. Agromyzidae em folhas de Lycopersicum esculentum Mill. Full Text Available The objective of this study was to determine the effect of height of leaves in the canopy of plants, leaf organic compounds, concentrations of leaf nitrogen and potassium, leaf trichomes and cristalliferous idioblasts densities on the attack intensity of three tomato Lycopersicon esculentum Mill.

Santa Clara crops by Tuta absoluta Meyrick Lepidoptera: Agromyzidae, under field conditions. The experimental design was arranged in randomized blocks, with three replications, each being one tomato crop. Highest insect attack occurred in the final stage of the culture. A higher number almeisa Liriomyza spp. The number of T. No significant effect of the trichomes and cristalliferous idioblasts densities of leaves was noted on T.

Apparently, the terpenes affected oviposition of T. Bioassay method for toxicity studies of insecticide formulations to Tuta absoluta meyrick Chemical control is the main method for controlling the tomato leafminer, Tuta absoluta MeyrickLepidoptera: Reported techniques for the evaluation of insecticide toxicity to the tomato leafminer are not in agreement with field conditions and do not grxmtica us to verify whether doses used in the field are efficient for control.

Thus, the objective of this work was to develop a bioassay methodology to study the toxicity of insecticide formulations to T. Bioassay method for toxicity studies of insecticide formulations to tuta absoluta meyrick Efficacy of insect-proof nets used in Tunisian tomato greenhouses against Tuta absoluta Meyrick Lepidoptera: Gelechiidae and potential impact on plant growth and fruit quality.

Full Text Available Insect-proof screens constitute efficient physical means of protecting horticultural crops against insect pests and their use has become widespread. However, they may have a negative impact on plant growth and fruit nilso by modifying climatic parameters of greenhouses.

In case of tomato crops, they are used mainly against white flies and the tomato leaf miner Tuta absoluta Meyrick. In Apmeida, tomato plastic tunnels are often netted following two modalities: