A Brief Review on Lobesia botrana Mating Disruption by Mechanically Distributing and Releasing Sex Pheromones from Biodegradable Mesofiber Dispensers

2017 ◽  
Vol 03 (01) ◽  
Author(s):  
Hans E Hummel
Keyword(s):  
Sex Pheromones ◽  
Mating Disruption ◽  
Lobesia Botrana

scholarly journals Small Cages with Insect Couples Provide a Simple Method for a Preliminary Assessment of Mating Disruption

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Françoise Briand ◽  
Patrick M. Guerin ◽  
Pierre-Joseph Charmillot ◽  
Patrik Kehrli
Keyword(s):  
Large Scale ◽  
Sex Pheromones ◽  
Mating Disruption ◽  
Mesh Size ◽  
Field Trials ◽  
Lobesia Botrana ◽  
Mosquito Net ◽  
Simple Method ◽  
The Impact ◽  
Pheromone Dispensers

Mating disruption by sex pheromones is a sustainable, effective and widely used pest management scheme. A drawback of this technique is its challenging assessment of effectiveness in the field (e.g., spatial scale, pest density). The aim of this work was to facilitate the evaluation of field-deployed pheromone dispensers. We tested the suitability of small insect field cages for a pre-evaluation of the impact of sex pheromones on mating using the grape mothsEupoecilia ambiguellaandLobesia botrana, two major pests in vineyards. Cages consisted of a cubic metal frame of 35 cm sides, which was covered with a mosquito net of 1500 μm mesh size. Cages were installed in the centre of pheromone-treated and untreated vineyards. In several trials, 1 to 20 couples of grape moths per cage were released for one to three nights. The proportion of mated females was between 15 to 70% lower in pheromone-treated compared to untreated vineyards. Overall, the exposure of eight couples for one night was adequate for comparing different control schemes. Small cages may therefore provide a fast and cheap method to compare the effectiveness of pheromone dispensers under standardised semi-field conditions and may help predict the value of setting-up large-scale field trials.

SYNTHETIC PHEROMONES DISRUPT MALE DIORYCTRIA SPP. MOTHS IN A LOBLOLLY PINE SEED ORCHARD

2000 ◽  
Vol 132 (3) ◽  
pp. 345-351 ◽  
Author(s):  
Gary L. DeBarr ◽  
James L. Hanula ◽  
Christine G. Niwa ◽  
John C. Nord
Keyword(s):  
Loblolly Pine ◽  
Large Scale ◽  
Sex Pheromones ◽  
Mating Disruption ◽  
Seed Orchard ◽  
Control Treatment ◽  
Tetradecenyl Acetate ◽  
Lepidoptera Pyralidae ◽  
Trap Catches ◽  
Large Scale Tests

AbstractSynthetic sex pheromones released in a loblolly pine, Pinus taeda L. (Pinaceae), seed orchard interfered with the ability of male coneworm moths, Dioryctria Zeller spp. (Lepidoptera: Pyralidae), to locate traps baited with sex pheromones or live females. Pherocon 1C® traps baited with synthetic pheromones or live conspecific females were hung near the center of two 1.2-ha circular plots during emergence of Dioryctria amatella (Hulst), Dioryctria disclusa (Heinrich), and Dioryctria merkeli (Mutuura and Munroe). In a paired design, trap catches for the mating-disruption treatment with synthetic pheromone dispensers consisting of three polyvinyl chloride rods placed in every tree were compared with the control treatment. Treatments were alternated at intervals of 2–3 d. Trap catches of D. amatella were reduced by 91% when plots were treated with 2.5 g/ha of Z-11-hexadencenyl acetate. Catches were reduced by 99.5% for D. disclusa and by 97% for D. merkeli when plots were treated with 12.5 g/ha of Z-9-tetradecenyl acetate, whereas catches of D. amatella were unaffected by this mating-disruption treatment. Daily disappearance of Z-9-tetradecenyl acetate from the dispensers averaged 0.46 g/ha or less. Manually placing dispensers on nylon lines in the tops of trees was an effective method for releasing synthetic Dioryctria pheromones in the orchard. These data suggest it may be feasible to prevent mating of Dioryctria spp. in pine seed orchards by using synthetic pheromones for mating disruption, but large-scale tests will be required to demonstrate cone protection.

One device for two pests: a new double dispenser for mating disruption of Lobesia botrana and Planococcus ficus

2021 ◽  
Author(s):  
Renato Ricciardi ◽  
Giovanni Benelli ◽  
Pompeo Suma ◽  
Francesca Cosci ◽  
Filippo Di Giovanni ◽  
...  
Keyword(s):  
Mating Disruption ◽  
Lobesia Botrana ◽  
Planococcus Ficus

scholarly journals Airborne Pheromone Quantification in Treated Vineyards with Different Mating Disruption Dispensers against Lobesia botrana

Insects ◽  
2020 ◽  
Vol 11 (5) ◽  
pp. 289
Author(s):  
Aitor Gavara ◽  
Sandra Vacas ◽  
Ismael Navarro ◽  
Jaime Primo ◽  
Vicente Navarro-Llopis
Keyword(s):  
Mating Disruption ◽  
Lobesia Botrana ◽  
Spectroscopic Methods ◽  
Concentration Profiles ◽  
European Grapevine Moth ◽  
Pheromone Concentration ◽  
Crop Cycle ◽  
Competitive Mechanisms ◽  
Grapevine Moth ◽  
Airborne Pheromone

Mating disruption (MD) is widely used against the European grapevine moth (EGVM), Lobesia botrana (Denis and Schiffermüller; Lepidoptera: Tortricidae), by installing passive dispensers or aerosol devices. The present work reports a new sampling and quantification methodology to obtain absolute data about field airborne pheromone concentration based on air samplings and sensitive chromatographic-spectroscopic methods. Samplings were performed in fields treated with passive dispensers or aerosol devices at different moments throughout the crop cycle to study how they act and how the disruption is triggered. Moreover, pheromone adsorption and releasing capacity of vine leaves were studied to elucidate their role in the disruption. Although both types of dispensers were effective in limiting the damage inflicted by EGVM, they performed differently and provided different airborne pheromone concentration profiles. Results also proved that leaves were able to adsorb and release part of the airborne pheromone acting as subsequent and additional pheromone sources. This fact could explain the different concentration profiles. Moreover, our results suggest that lower pheromone emission than that of the current passive dispensers still could provide an adequate performance in the field. Competitive mechanisms involved in MD using both dispensers, the dynamics of the airborne pheromone throughout the time and the importance of the canopy are discussed.

scholarly journals MATING DISRUPTION OF GRAPHOLITA MOLESTA BUSCK. TO IMPROVE QUALITY AND HEALTHY OF PEACH FRUITS

2021 ◽  
Vol 37 (37) ◽  
pp. 78-82
Author(s):  
Plamen Ivanov ◽  
◽  
Desislava Stefanova ◽  
Keyword(s):  
Sex Pheromones ◽  
Mating Disruption ◽  
Environmental Control ◽  
Plant Protection ◽  
Oriental Fruit Moth ◽  
Grapholita Molesta ◽  
Insecticide Treatment ◽  
Chemical Treatments ◽  
Fruit Growing ◽  
Peach Orchard

In Bulgarian fruit growing agriculture mainly chemical plant protection is applied. Applications with organophosphates and pyrethroids are carried out to control the economically most important peach pest - the oriental fruit moth (Grapholita molesta Busck.). Annually during the vegetation season 7-8 insecticide treatments are applied. This leads to contamination of fruit products and the environment, which is a prerequisite for seeking other approaches. Regarding to fruit moth, sex pheromones are one of the most widely used environmental control methods, but they are most commonly used in apples. Their introduction in the monitoring of the main peach pest can lead to a reduction of chemical treatments and production with less pesticide residues. A promising direction is the use of pheromones to control the pests through sexual disorientation of males. The trial of mating disruption in the present study were carried out with ISOMATE® OFM TT dispensers in 0.9 ha peach orchard in 2020 and 2021. Pheromone traps type "Delta" of the Hungarian company CSALOMON® were used. The ISOMATE OFM TT dispensers, installed before the first flight of OFM at the rate of 250 units per ha, efficiently reduced fruit damages - down to 0.1-0.2% at harvest. In the reference orchard with 6 insecticide treatment against OFM, the damages reached 3.0-3.6%. The results indicate that mating disruption for control of Grapholita molesta Busck. can be used in production of quality and healthy peach fruits.

scholarly journals Evaluation of the Efficacy of Sex Pheromones and Food Attractants Used to Monitor and Control Synanthedon Myopaeformis (Lepidoptera: Sesiidae)

2016 ◽  
Vol 64 (5) ◽  
pp. 1575-1581 ◽  
Author(s):  
František Kocourek ◽  
Jitka Stará
Keyword(s):  
Sex Pheromones ◽  
Apple Juice ◽  
Mating Disruption ◽  
Flight Activity ◽  
Mass Trapping ◽  
Apple Orchards ◽  
Monitoring And Control ◽  
Food Attractants ◽  
Tree Injury ◽  
And Control

Synanthedon myopaeformis (Borkhausen, 1789) (Lepidoptera: Sesiidae) is a prominent pest of commercial apple orchards in Europe. the sex pheromones of S. myopaeformis and food attractants based on apple juice, beer and red wine were evaluated as tools for monitoring and control the populations of S. myopaeformis in apple orchards in the Czech Republic. For monitoring S. myopaeformis flight activity, trap designs were also evaluated, and the results indicated that wing traps were more suitable than delta traps because of their high efficacy even at low population densities of S. myopaeformis. The flight activity patterns of S. myopaeformis showed high intrapopulation variability and variability between years. The use of pheromones as a mating disruption technique led to a decrease of tree injury in comparison to untreated controls during the three years of the experiment. The reduction of the number of S. myopaeformis larvae per tree on a 14-ha plot treated subjected to the mating disruption technique reached 56 % in the third year of the experiment. In the three-year experiment using food attractants for the mass trapping of S. myopaeformis, catches of S. myopaeformis in traps using a combination of beer and apple juice (50:50) at a density of 4 traps/ha on a 4-ha plot increased more than 4-fold.

scholarly journals Production of moth sex pheromones for pest control by yeast fermentation

2020 ◽  
Author(s):  
Carina Holkenbrink ◽  
Bao-Jian Ding ◽  
Hong-Lei Wang ◽  
Marie Inger Dam ◽  
Karolis Petkevicius ◽  
...  
Keyword(s):  
Human Health ◽  
Pest Control ◽  
Sex Pheromones ◽  
Mating Disruption ◽  
Pheromone Biosynthesis ◽  
Yeast Fermentation ◽  
Major Barrier ◽  
Cell Factories ◽  
Insect Sex Pheromones ◽  
Insect Sex

AbstractThe use of insect sex pheromones is an alternative technology for pest control in agriculture and forestry, which, in contrast to insecticides, does not have adverse effects on human health or environment and is efficient also against insecticide-resistant insect populations.1,2 Due to the high cost of chemically synthesized pheromones, mating disruption applications are currently primarily targeting higher value crops, such as fruits.3 Here we demonstrate a biotechnological method for the production of pheromones of economically important moth pests using engineered yeast cell factories. Biosynthetic pathways towards several pheromones or their precursors were reconstructed in the oleaginous yeast Yarrowia lipolytica, which was further metabolically engineered for improved pheromone biosynthesis by decreasing fatty alcohol degradation and downregulating storage lipid accumulation. The sex pheromone of the cotton bollworm Helicoverpa armigera was produced by oxidation of fermented fatty alcohols into corresponding aldehydes. The resulting pheromone was just as efficient and specific for trapping of H. armigera male moths in cotton fields in Greece as a synthetic pheromone mixture. We further demonstrated the production of the main pheromone component of the fall armyworm Spodoptera frugiperda. Our work describes a biotech platform for the production of commercially relevant titres of moth pheromones for pest control by yeast fermentation.Significance statementAgriculture largely relies on insecticides and genetically modified crops for pest control, however alternative solutions are required due to emerging resistance, toxicity and regulatory issues, and consumer preferences. Mating disruption with sex pheromones that act by preventing insect reproduction is considered the most promising and scalable alternative to insecticides. This method is highly efficient and safe for human health and environment. The likelihood of insect resistance development is very low and can be handled by adjusting the pheromone composition. The high cost of chemically synthesized pheromones is the major barrier for the wider adoption of pheromones. A novel method based on yeast fermentation enables the production of insect sex pheromones as a lower cost from renewable feedstocks.

Sign in / Sign up

Export Citation Format

Share Document