Anastrepha striata (guava fruit fly).

2021 ◽  
Author(s):  
Allen Norrbom
Keyword(s):  
Human Activities ◽  
Fruit Fly ◽  
Southern Brazil ◽  
Native Range ◽  
Guava Fruit ◽  
The Usa ◽  
Cultivated Species

Abstract A. striata is a pest of various cultivated species of Myrtaceae, especially guavas [Psidium spp.]. Its exact native range is obscure, but its presence in southern Brazil has been detected only recently, suggesting that human activities may have aided its spread. It has also been intercepted and trapped in the USA (Florida, California), indicating its potential for spread via infested fruits.

Anastrepha grandis (South American cucurbit fruit fly).

2021 ◽  
Author(s):  
Allen Norrbom
Keyword(s):  
Cucumis Melo ◽  
Fruit Fly ◽  
South American ◽  
Southern Brazil ◽  
The Usa ◽  
Andean Countries ◽  
Cultivated Species

Abstract A. grandis is a pest of various cultivated species of Cucurbitaceae, especially pumpkin (Cucurbita spp.), squash (Cucurbita spp.) and melon [Cucumis melo]. It occurs in the Andean countries, Paraguay, southern Brazil, and northern Argentina. It has been intercepted at ports in the USA, indicating its potential for spread via infested fruits.

Anastrepha serpentina (sapodilla fruit fly).

2021 ◽  
Author(s):  
Allen Norrbom
Keyword(s):  
Fruit Fly ◽  
Widespread Species ◽  
Manilkara Zapota ◽  
The Usa ◽  
Cultivated Species ◽  
Chrysophyllum Cainito ◽  
American Tropics

Abstract A. serpentina is a pest of various cultivated species of Sapotaceae, especially caimito [Chrysophyllum cainito], sapodilla [Manilkara zapota], and sapote [Capparis angulata], and it occasionally attacks a variety of other hosts, including Citrus spp. It is a widespread species in the American tropics, occurring from Mexico to Argentina. It has been intercepted and trapped in the USA (Florida, California) and other countries outside its range indicating its potential for spread via infested fruits.

Guava (Psidium guajava L.) Fruit Coating with Gum – Arabic for Quality and Fruit Fly Control

1970 ◽  
pp. 01-04
Author(s):  
Esameldin B. M. Kabbashi, Ghada H. Abdelrahman and Nawal A. Abdlerahman
Keyword(s):  
Shelf Life ◽  
Gum Arabic ◽  
Fruit Fly ◽  
Psidium Guajava ◽  
Postharvest Quality ◽  
Guava Fruit ◽  
Fruit Shelf Life ◽  
Fly Control ◽  
And Control ◽  
Subtropical Fruit

Guava (Psidium guajava L.) is a lovely tropical and subtropical fruit that originates in Mexico, Central America, and then taken to other distant and near parts around the world. In Sudan this popular fruit is produced in orchards and household and is so profitable but yet attacked by a lot of fruit fly species of the Genera Ceratitis and Bactrocera and the result is a loss of more than 70%. This research aimed at evaluating the effect of Gum Arabic coating (GAC) in extending the shelf life of guava fruit and disinfesting it from these notorious pests. Guava fruits from Kadaro orchards, Khartoum North, were tested using seven concentrations of Gum Arabic solutions. The results reflect that 1: 4 (25%) and 1: 8 (12.5%) (GA: water) concentrations attained 56 and 40% disinfestation, respectively whereas the other lower concentrations effected corresponding results in a range from 20 – 08%. The reduction in maggots per test fruit reached upto 188% as compared to the control.  The highest concentrations (1: 4 & 1: 8) effected a sustainability of 52% in fruit firmness (FF) with an average of medium (3) FF compared to soft FF (4) in the control. The corresponding results in other lower concentrations (1: 16; 1: 32; 1: 64; 1: 72 & 1: 96) were 36, 24, 24, 20 and 16%, respectively. In addition to an average FF of 4 (soft) for all these concentrations and 5 (very soft) for all the corresponding controls. Nevertheless, the sustainability of fruit color (FC) effected by the test concentrations was 52, 44, 24, 22, 24, 20, and 24%, respectively. Regarding these results, the two highest test concentrations effected a sizeable disinfestation and control of fruit flies and a good extension of shelf life of guava in Khartoum State. These findings support using this treatment as an effective IPM tool to extend guava fruit shelf life and upgrading its postharvest quality.

Chrysomyxa abietis (needle rust of fir).

2021 ◽  
Author(s):  
Keyword(s):  
Life Cycle ◽  
New Zealand ◽  
North America ◽  
Rust Fungus ◽  
Significant Problem ◽  
Northern Europe ◽  
Native Range ◽  
Obligate Parasite ◽  
The Usa ◽  
Accidental Introduction

Abstract C. abietis is a microcyclic rust fungus; an obligate parasite completing its life cycle on species of Picea (spruce). Only the current year's needles of Picea are infected and those needles are shed early. Reported from northern Europe and Asia, the fungus is a Regulated Pest for the USA. It is absent from North America, where susceptible species are native, and Australia and New Zealand, where they are introduced. Although usually not a significant problem in its native range, because conditions are not favourable for heavy infections every year (Smith et al., 1988; Hansen, 1997), this rust could be more damaging as an invasive in other temperate areas. Due to the fact that small amounts of infection may be overlooked, accidental introduction could occur through importation of infected seedlings or young trees.

scholarly journals Phenological asynchrony between the fruit fly Anastrepha fraterculus and early maturing peach cultivars could contribute to pesticide use reduction

2019 ◽  
Vol 17 (1) ◽  
pp. e1001 ◽  
Author(s):  
Emily S. Araujo ◽  
Leticia R. Paiva ◽  
Sidney G. Alves ◽  
Daniele Bevacqua ◽  
Dori E. Nava ◽  
...  
Keyword(s):  
Sustainable Management ◽  
Fruit Fly ◽  
Pesticide Use ◽  
Exotic Plant ◽  
Southern Brazil ◽  
Fruit Crops ◽  
Growing Seasons ◽  
Anastrepha Fraterculus ◽  
Early Maturing ◽  
South Of Brazil

Phenological asynchrony between fruit crops and pests consists of a discrepancy between the period of fruit susceptibility and that of high pest abundance in the orchards. Therefore, it may be used for reducing pesticide applications. We assayed the potential phenological asynchrony between peach cultivars with different growing cycles and the Anastrepha fraterculus (Diptera: Tephritidae). To this end, we assessed fruit infestation by A. fraterculus at harvest for one growing season (2012-2013) in early, average and late maturing peach cultivars. Moreover, the fruit infestation was checked for non-cultivated native and non-cultivated wild exotic plant hosts around the peach orchards of the experimental area during 2013 and 2014. In addition, we monitored A. fraterculus abundance weekly during three consecutive growing seasons, S1 (2011-2012), S2 (2012-2013) and S3 (2013-2014), to assess phenological asynchrony between peach cultivars and A. fraterculus. In particular, we checked the influence of meteorological variables on A. fraterculus abundance, and tested if A. fraterculus abundance at the time when fruits are susceptible differed among cultivars. Eventually we discuss the possibility of sustainable management of peach in southern Brazil. This study constitutes a first assessment of the periods of crop vulnerability and pest presence in peach orchards in South of Brazil and provides necessary information for taking advantage of the phenological asynchrony phenomenon for this pest-crop association.

scholarly journals Caribbean Fruit Fly, Anastrepha suspensa (Loew) (Insecta: Diptera: Tephritidae)

EDIS ◽  
1969 ◽  
Vol 2004 (5) ◽  
Author(s):  
Howard V. Weems, Jr. ◽  
John B. Heppner ◽  
Thomas R. Fasulo ◽  
James L. Nation
Keyword(s):  
Fruit Fly ◽  
Cooperative Extension Service ◽  
Anastrepha Ludens ◽  
Anastrepha Suspensa ◽  
Mexican Fruit Fly ◽  
The West ◽  
University Of Florida ◽  
Caribbean Fruit Fly ◽  
Guava Fruit ◽  
The Caribbean

The Caribbean fruit fly, Anastrepha suspensa (Loew), has also been called the Greater Antilliean fruit fly, the guava fruit fly and the Caribfly. It is a near relative of the Mexican fruit fly, Anastrepha ludens (Loew), and is one of several species of fruit flies which are indigenous to the West Indies and the larvae of which attack several kinds of tropical and subtropical fruits. This document is EENY-196 (originally published as DPI Entomology Circulars 38 and 260), one of a series of Featured Creatures from the Entomology and Nematology Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Published: March 2001. EENY196/IN353: Caribbean Fruit Fly, Anastrepha suspensa (Loew) (Insecta: Diptera: Tephritidae) (ufl.edu)

scholarly journals Effect of food lures for monitoring of Anastrepha fraterculus (Diptera: Tephritidae) in Acca sellowiana (Myrtaceae)

2017 ◽  
Vol 43 (2) ◽  
pp. 201
Author(s):  
Joatan Machado da Rosa ◽  
Cristiano João Arioli ◽  
Aline Costa Padilha ◽  
Lenita Agostinetto ◽  
Marcos Botton
Keyword(s):  
Grape Juice ◽  
Fruit Fly ◽  
Fruit Flies ◽  
Capture Efficiency ◽  
Southern Brazil ◽  
Hydrolyzed Protein ◽  
Anastrepha Fraterculus ◽  
Effect Of Food ◽  
Action Thresholds ◽  
Acca Sellowiana

The South American fruit fly, Anastrepha fraterculus (Diptera: Tephritidae) stands out for its polyphagous habit of damaging the production of several fruits in southern Brazil. This study aimed to evaluate the capture efficiency of A. fraterculus using grape juice at different periods of decomposition and aging as well as to test the capture efficiency of the enzymatic hydrolyzed protein Cera Trap® in feijoa crops. The work was conducted in a commercial feijoa orchard in São Joaquim, SC, Brazil during the 2014 growing season. Undiluted Cera Trap®, fresh grape juice and grape juice that had aged for 7 and 14 days were evaluated. All of the treatments with grape juice were used at the recommended concentration of 25 %. McPhail traps were used with 300 mL for each lure. On a weekly basis, the number of adults and the percentage of female fruit flies captured were evaluated, using identification and counting. Cera Trap® was the lure that captured the highest number of fruit flies, with a high percentage of females and with a higher frequency of captures during the season. Cera Trap® also showed the highest number of action thresholds compared to grape juice treatments. The 25 % fresh and aged grape juice showed a low number of captures and a low number of action thresholds. We conclude that fresh and aged grape juice were not effective for capturing and  monitoring A. fraterculus in feijoa orchards. The Cera Trap® lure proves to be an alternative to improve  monitoring of A. fraterculus in orchards in southern Brazil.

scholarly journals Variability of nitrogen content in the needles of Douglas-fir (Pseudotsuga menziesii Mir/Franco) provenances

Genetika ◽  
2011 ◽  
Vol 43 (2) ◽  
pp. 407-417 ◽  
Author(s):  
Vera Lavadinovic ◽  
Vasilije Isajev ◽  
Zoran Miletic ◽  
Milun Krstic
Keyword(s):  
Nitrogen Content ◽  
Mineral Nutrition ◽  
Douglas Fir ◽  
Native Range ◽  
Adaptive Potential ◽  
Small Areas ◽  
Physiological Processes ◽  
Provenance Test ◽  
The Usa ◽  
Geographical Characteristics

Nitrogen content in the needles of twenty Douglas-fir provenances, originating from different sites within the native range of the species in the USA, was studied in a Douglas-fir provenance test established at the montane beech site on acid brown soil. Based on the variability of nitrogen content in the needles, the intensity and dynamics of the physiological processes of Douglas-fir mineral nutrition were analyzed as the indicators of Douglas-fir adaptive potential to the sites in Serbia. All the trees of the study provenances were of the same age and grown under the same site and population conditions. The quantities of nitrogen absorbed in Douglas-fir needles were correlated with the geographical characteristics of the native sites of the observed provenances. The differences in nitrogen content in Douglas-fir needles point out the variability in the intensity of the physiological processes in the genotypes of the different provenances. Since the study Douglas-fir trees are cultivated on relatively small areas, in more or less equal general conditions, it can be concluded that the parameters of mineral nutrition depend on the genotypes constituting the gene pool of the study Douglas-fir provenances.

scholarly journals Method for Determination of Xanthene Dyes in Guava Fruits and Its Application in a Field Dissipation Study

2000 ◽  
Vol 83 (3) ◽  
pp. 563-568
Author(s):  
Jocelyn P Alcantara-Licudine ◽  
Ngoc Lan Bui ◽  
Qing X Li ◽  
Grant T McQuate ◽  
Steven L Peck
Keyword(s):  
Liquid Chromatography ◽  
Solvent Extraction ◽  
Fruit Fly ◽  
Average Concentration ◽  
Xanthene Dyes ◽  
Guava Fruit ◽  
Zone Electrophoresis ◽  
Capillary Zone ◽  
Tephritid Fruit Flies

Abstract Xanthene dyes, i.e., phloxine B and uranine or phloxine B alone, are phototoxic to tephritid fruit flies infesting guava fruits. An analytical method was developed for determination of residues of these dyes used in bait solutions for suppression of the tephritid fruit fly population in guava fruits. The procedure involved solvent extraction, anionexchange cleanup, and determination by liquid chromatography or capillary zone electrophoresis. The dyes were extracted from 50 g guava fruit at 45°C with 400 mL methanol–acetonitrile (1 + 1) and 5 g magnesium oxide added as an alkaline and clarifying agent. The guava extract was adjusted to pH 8.5 and subjected to an amino column cleanup. Average recoveries of xanthene dyes added to guava purees ranged from 77 to 99% for phloxine B and from 79 to 102% for uranine at spiking levels of 0.05–1.00 μg/g. The method was applied to the determination of phloxine B residues in guava fruits collected from a dye-sprayed orchard. After phloxine B was applied at a rate of 62.5 g/ha for 14 weekly sprayings, it was found on guava fruits at an average concentration of 111 ± 18 ng/g 4 h after the 11th spraying. The concentration of phloxine B was 426 ± 94 ng/g in selected fruits with high deposits of the dye 4 h after spraying. Average concentrations of phloxine B 5 days after the 7th and 14th sprayings were 29 ± 7 and 19 ± 8 ng/g, respectively.

Studies on Predicting Distribution of Guava Fruit Fly in Yunnan Province Based on the Genetic Neural Model

2012 ◽  
Vol 459 ◽  
pp. 224-228
Author(s):  
Yuan Ping Ni ◽  
Xiao Fei Liu ◽  
Hui Ye
Keyword(s):  
Neural Network ◽  
Genetic Algorithm ◽  
Yunnan Province ◽  
Back Propagation ◽  
Neural Model ◽  
Fruit Fly ◽  
Back Propagation Neural Network ◽  
Experimental Results ◽  
Parallel Search ◽  
Guava Fruit

Based on discussing the advantages of improving genetic algorithm and analyzing the defects of back propagation neural network, we presented the genetic neural model. The simulating data proved that the genetic neural model was able to realize parallel search and could get faster searching speed during random searching optimizaiton. The model was applied to predicting distribution of guava fruit fly. The experimental results show that the model can predict distribution of the fly which is consistent with the practical distribution. The model is very useful in practice. It is worthwhile to refer the model to predicting similar insects.

Sign in / Sign up

Export Citation Format

Share Document