scholarly journals Extract of Nicotiana tabacum as a potential control agent of Grapholita molesta (Lepidoptera: Tortricidae)

2018 ◽  
Author(s):  
Souvic Sarker ◽  
Un Taek Lim
Keyword(s):  
Nicotiana Tabacum ◽  
Acute Toxicity ◽  
Control Agent ◽  
Oriental Fruit Moth ◽  
Grapholita Molesta ◽  
Potential Control ◽  
Residual Toxicity ◽  
First Instar ◽  
Pome Fruits ◽  
Important Pest

Oriental fruit moth, Grapholita molesta (Busck) (Lepidoptera: Tortricidae), is an important pest of stone and pome fruits. Growers usually depend on chemical insecticides to control this pest, but demand for more environmentally-friendly means of controlling pests is increasing. At least 77 plant extracts have been reported to be effective against other lepidopterans, but their acute toxicity against G. molesta has rarely been studied. Among these 77 materials, we assessed the residual toxicity of 32 extracts against first instar larvae (

Grapholita molesta (Oriental fruit moth).

2021 ◽  
Author(s):  
Alex Il'ichev
Keyword(s):  
Economic Importance ◽  
Shoot Tips ◽  
Tree Canopy ◽  
Oriental Fruit Moth ◽  
Economic Damage ◽  
Young Shoot ◽  
Grapholita Molesta ◽  
Industrial Systems ◽  
The World ◽  
Pome Fruits

Abstract G. molesta is a serious pest of economic importance of commercial stone and pome fruits around the world. G. molesta damages peaches, nectarines, plums, cherries, apricots, apples, pears, quinces and nashi (Asian pears) and can also attack and cause economic damage on other commercial fruits. In severe attacks, young trees can suffer distortion of growing shoots and stems, which makes pruning, training and shaping the tree canopy difficult, particularly for close-planting industrial systems such as Tatura trellis. One larva can damage many shoots by tunnelling deep into young shoot tips. Larvae move to feed on the green fruits usually after shoots mature and harden. One larva can damage many fruits, particularly when fruits are located close to each other.

scholarly journals Different Population Phenologies of Grapholita molesta (Busck) in Two Hosts and Two Nearby Regions in the NE of Spain

Insects ◽  
2021 ◽  
Vol 12 (7) ◽  
pp. 612
Author(s):  
Carles Amat ◽  
Dolors Bosch-Serra ◽  
Jesús Avilla ◽  
Lucía Adriana Escudero Colomar
Keyword(s):  
Population Dynamics ◽  
Adult Population ◽  
Pheromone Traps ◽  
Degree Days ◽  
Grapholita Molesta ◽  
North East ◽  
Pome Fruits ◽  
Important Pest ◽  
Phenology Model ◽  
Time Point

Grapholita molesta is an important pest of stone and pome fruits. In commercial orchards, integrated pest management programs use pheromone traps to monitor the population dynamics of G. molesta and adjust treatments. Phenology models can be used to forecast the population phenology of pests and to help optimise the time point at which to spray the orchards with insecticides. In the present study, the adult population phenologies of G. molesta in two provinces of north-east Spain were studied, as well as their fit to the phenology model most used in both provinces. Weekly captures of adults in pheromone traps through the season were recorded over 5 y in a large number of commercial orchards, and these data were used to determine the number of generations of G. molesta in each province. The results show significant differences between provinces in the generation time, being 97 degree days (DD) shorter in the Lleida province than in the Girona province. In Girona province, four generations were registered, while five were detected in Lleida. As a result of the differences found, the phenology model was not able to predict precisely the population dynamics in the Girona province.

scholarly journals Impact of pheromone mating disruption and pesticides on oriental fruit moth (Grapholita molesta) on peaches

2007 ◽  
Vol 60 ◽  
pp. 67-71
Author(s):  
P.L. Lo ◽  
L.M. Cole
Keyword(s):  
New Zealand ◽  
Mating Disruption ◽  
Acceptable Level ◽  
Oriental Fruit Moth ◽  
Fresh Market ◽  
Grapholita Molesta ◽  
Important Pest ◽  
Fruit Damage ◽  
The Cost ◽  
Pheromone Dispensers

Oriental fruit moth (OFM) is an important pest of summerfruit grown for both fresh market and processing in Hawkes Bay New Zealand Mating disruption was applied over three consecutive years on the same three cv Golden Queen peach orchards At each orchard plots of 0535 ha were treated with pheromone dispensers either alone or supplemented with insecticides In year one OFM populations were high and mating disruption or 12 insecticide applications did not provide sufficient control with up to 3 damage at harvest The following year all trial areas received pheromone dispensers plus one or two insecticide applications and fruit damage was at acceptable level of less than 1 In year three blocks with mating disruption alone averaged 02 OFM infestation compared with 09 where no OFM control was used OFM mating disruption is now increasingly being adopted by growers but the cost relative to insecticides is a barrier

The Effect of Photoperiods and Light Intensity on Mating Behavior and Reproduction of Grapholita molesta (Lepidoptera: Tortricidae)

2019 ◽  
Vol 48 (5) ◽  
pp. 1035-1041 ◽  
Author(s):  
Xianwei Li ◽  
Xiaoting Jia ◽  
Huiming Xiang ◽  
Hongliang Diao ◽  
Yu Yan ◽  
...  
Keyword(s):  
Light Intensity ◽  
Mating Behavior ◽  
Courtship Behavior ◽  
Abiotic Factors ◽  
Northern China ◽  
Oriental Fruit Moth ◽  
Grapholita Molesta ◽  
Egg Hatch ◽  
Hatch Rate ◽  
Important Pest

Abstract Oriental fruit moth, Grapholita molesta (Busck), is a worldwide pest and is the dominant pest of rosaceous plants in northern China. Little is known, however, about the influence of abiotic factors on the daily life history events of this economically important pest, so here we evaluated the effect of different photoperiods (L:D) (0:24; 2:22; 4:20; 6:18; 8:16; 10:14; 12:12; 14:10; 15:9 [control]; 16:8; 18:6; 20:4; 22:2; and 24:0 h) and light intensities (50, 100, 200, 300, 400, and 500 lux) on the mating behavior and reproduction of oriental fruit moth. We found that oriental fruit moth adults with an 8, 9, or 10 h scotophase showed considerably more courtship behavior than those in other photoperiod treatments. Meanwhile, male fanning and male ‘crawling in a circle’ behaviors significantly decreased with increasing light intensity. Neither female or male oriental fruit moth longevity nor the egg hatch rate were influenced by photoperiod (P = 0.146; 0.271; 0.107) or light intensity (P = 0.268; 0.08; 0.123). In both photoperiod and light intensity treatments (P < 0.05), the number of eggs laid daily by females was significantly influenced by female age, decreasing with greater age. Female oriental fruit moth lifetime fecundity was influenced by photoperiod, with the 9, 10, 16, 18, and 22 h scotophase periods having higher fecundity than other treatments. Meanwhile, fecundity decreased with increasing light intensity.

In-vitro evaluation of copper nanoparticles as a potential control agent against the fungal symbionts of the invasive ambrosia beetle Euwallacea fornicatus

2021 ◽  
Vol 143 ◽  
pp. 105564
Author(s):  
Luisa F. Cruz ◽  
Juan C. Cruz ◽  
Daniel Carrillo ◽  
Arturo I. Mtz-Enriquez ◽  
Araceli Lamelas ◽  
...  
Keyword(s):  
Copper Nanoparticles ◽  
Control Agent ◽  
Ambrosia Beetle ◽  
In Vitro Evaluation ◽  
Potential Control
Sign in / Sign up

Export Citation Format

Share Document