scholarly journals Distribution of the coffee leaf miner, Leucoptera coffeella, and its parasitoids in the canopy of coffee, Coffea arabica in Puerto Rico

1969 ◽  
Vol 72 (1) ◽  
pp. 141-146
Author(s):  
Fernando Gallardo-Covas
Keyword(s):  
Puerto Rico ◽  
Coffea Arabica ◽  
Tree Canopy ◽  
Leaf Miner ◽  
Coffee Tree ◽  
Significant Difference ◽  
Leucoptera Coffeella ◽  
Coffee Leaf Miner ◽  
Different Levels

An experiment was established in the summer of 1 986 to study the distribution of the coffee leaf miner and its parasitoids within the coffee tree canopy. Mean estimates of percentage parasitization were 13.20, 14.32, and 16.00 at tree heights of 0-1, 1-2, and 2-3 m, respectively. The experiment failed to show a significant difference between parasitization of the coffee leaf miner at different levels in the canopy. Mined leaf index estimates of 0.7, 0.7 and 0.3 were obtained at 0-1 , 1-2 and 2-3 m, respectively. This experiment shows that L. coffeella acts at all levels in the tree canopy, although more so at lower levels.

scholarly journals Reproductive capacity of Mirax insularis - Muesebeck (Hym: Braconidae) in larvae of the coffee leaf miner, Leucoptera coffeella- GuérinMéneville and Perrottet 1842 (Lep: Lyonetiidae).

1969 ◽  
Vol 96 (3-4) ◽  
pp. 221-234
Author(s):  
Marcela Daza ◽  
Fernando Gallardo
Keyword(s):  
Reproductive Potential ◽  
Reproductive Capacity ◽  
Leaf Miner ◽  
Experimental Unit ◽  
Artificial Rearing ◽  
Significant Difference ◽  
Rearing Conditions ◽  
Leucoptera Coffeella ◽  
Correlation Tests ◽  
Coffee Leaf Miner

The braconid Mirax insularis Muesebeck Is a koinoboint parasitoid of the coffee leafminer, Leucoptera coffeella Guérin-Méneville & Perrottet, ¡n Puerto Rico. However, their reproductive capacity under artificial rearing conditions of the leafminer is not known. The objective of this study was to determine its reproductive potential in larvae of 1st and 2nd instar of L. coffeella. Reproductive capacity tests showed significant differences (test t-Student, P < 0.05) in the preference of M. insularis for 2nd instar larvae with 7% of parasitization, whereas in 1st instar it gained only 5%. The average oviposition of M. insularis increases three folds (14 eggs per female) in a period of 48 hours on 2nd instar when compared to 1st instar. In the analysis of variance, the treatments that showed a significant difference (Tukey test, P < 0.05) were those with densities of 60 to 80 parasitoids per experimental unit on 2nd instar. Correlation tests find that there is a correlation (R = 0.453, P = 0.547) among the progeny of M. insularis produced when using larvae of the 1st instar. However, there is a positive correlation (R = 0.981, P = 0.019) when using 2nd instar larvae. The parasitization of M. insularis is higher when performing inoculations with 60 to 80 parasitoids on 2nd instar, producing a progeny of 365 and 480 parasitoids, respectively.

scholarly journals Faunal survey of the coffee leaf miner, Leucoptera coffeella, parasitoids in Puerto Rico

1969 ◽  
Vol 72 (2) ◽  
pp. 255-263
Author(s):  
Fernando Gallardo-Covas
Keyword(s):  
Puerto Rico ◽  
Natural Enemies ◽  
West Indies ◽  
Leaf Miner ◽  
Total Percentage ◽  
Parasitoid Population ◽  
Leucoptera Coffeella ◽  
Coffee Leaf Miner ◽  
Faunal Survey

The coffee leaf miner (CLM), Leucoptera coffeella Guérin-Méneville, is the worst coffee pest in Puerto Rico. Damage by this insect can reduce yields up to 40%. In Puerto Rico the use of chemical insecticides is the main control tactics while little attention has been given to the use of CLM natural enemies. Little is known about CLM endemic parasitoids. In an attempt to obtain more information about CLM parasitoids, a faunal survey throughout the coffee region of Puerto Rico was done in 1985 and 1986. In the 1985 survey the highest parasitism percentage (66.7) was obtained on the Bennazar farm at Bo. Yahuecas, Adjuntas, followed by Hacienda Balear at Bo. Guayo, Adjuntas, and Roman's farm at Bo. Espino Ceiba, Lares, with 42.9 and 36,4% of parasitism, respectively. In the 1986 survey the highest parasitism percentage (54.0%) was obtained at Bo. Toro Negro, Villalba followed by Bo. Carmelita, Ponce and Bo. Collores, Juana Díaz, with 47.8 and 47.0% of parasitism, respectively. No correlation was obtained between elevation and parasitism percentage. Five Eulophidae, Cirrospiloideus sp., Zagrammosoma sp., Horismenus sp., Achrysonocharoides sp., Chrysonotomyia sp., and a Braconid, Mirax insularis Musesebeck, were collected. The Braconid parasitoid, Mirax insularis, imported from Guadeloupe, West Indies, to Puerto Rico in 1937 and liberated at Lares and Quebradillas, was collected by the author over the entire coffee areas. The highest percentage of parasitism was recorded for Achrysonocharoides sp., (33.1%) followed by M. insularis (32.4%). The Eulophidae complex represents 67.6% of the total parasitoid population. The total percentage of CLM parasitism for the coffee area surveyed was 23.5% for 1985 and 19.5% for 1986.

scholarly journals Insecticide use and organophosphate resistance in the coffee leaf miner Leucoptera coffeella (Lepidoptera: Lyonetiidae)

2002 ◽  
Vol 92 (3) ◽  
pp. 203-212 ◽  
Author(s):  
D.B. Fragoso ◽  
R.N.C. Guedes ◽  
M.C. Picanço ◽  
L. Zambolim
Keyword(s):  
Insecticide Resistance ◽  
Methyl Parathion ◽  
Leaf Miner ◽  
Organophosphate Resistance ◽  
Standard Population ◽  
Resistant Population ◽  
Insect Populations ◽  
Leucoptera Coffeella ◽  
Coffee Leaf Miner ◽  
Brazilian Populations

AbstractIncreasing rates of insecticide use against the coffee leaf miner Leucoptera coffeella (Guérin-Méneville) and field reports on insecticide resistance led to an investigation of the possible occurrence of resistance of this species to some of the oldest insecticides used against it in Brazil: chlorpyrifos, disulfoton, ethion and methyl parathion. Insect populations were collected from ten sites in the state of Minas Gerais, Brazil and these populations were subjected to discriminating concentrations established from insecticide LC99s estimated for a susceptible standard population. Eight of the field-collected populations showed resistance to disulfoton, five showed resistance to ethion, four showed resistance to methyl parathion, and one showed resistance to chlorpyrifos. The frequency of resistant individuals in each population ranged from 10 to 93% for disulfoton, 53 to 75% for ethion, 23 to 76% for methyl parathion, and the frequency of resistant individuals in the chlorpyrifos resistant population was 35%. A higher frequency of individuals resistant to chlorpyrifos, disulfoton and ethion was associated with greater use of insecticides, especially other organophosphates. This finding suggests that cross-selection, mainly between organophosphates, played a major role in the evolution of insecticide resistance in Brazilian populations of L. coffeella. Results from insecticide bioassays with synergists (diethyl maleate, piperonyl butoxide and triphenyl phosphate) suggested that cytochrome P450-dependent monooxygenases may play a major role in resistance with minor involvement of esterases and glutathione S-transferases.

scholarly journals SUSCEPTIBILIDAD DE 53 CULTIVARES DE CAFÉ, COFFEA ARABICA, AL DAÑO DEL MINADOR DEL CAFÉ, LEUCOPTERA COFFEELLA, EN PUERTO RICO

1969 ◽  
Vol 72 (1) ◽  
pp. 165-168
Author(s):  
Fernando Gallardo-Covas ◽  
Wigmar González-Muñiz ◽  
Eladio Hernández-López
Keyword(s):  
Puerto Rico ◽  
Coffea Arabica ◽  
Leucoptera Coffeella

SUSCEPTIBILIDAD DE 53 CULTIVARES DE CAFÉ, COFFEA ARABICA, AL DAÑO DEL MINADOR DEL CAFÉ, LEUCOPTERA COFFEELLA, EN PUERTO RICO

scholarly journals A Comprehensive Review of the Coffee Leaf Miner Leucoptera coffeella (Lepidoptera: Lyonetiidae)—A Major Pest for the Coffee Crop in Brazil and Others Neotropical Countries

Insects ◽  
2021 ◽  
Vol 12 (12) ◽  
pp. 1130
Author(s):  
Juliana Dantas ◽  
Isabela O. Motta ◽  
Leonardo A. Vidal ◽  
Eliza F. M. B. Nascimento ◽  
João Bilio ◽  
...  
Keyword(s):  
Control Strategies ◽  
Integrated Approach ◽  
Leaf Miner ◽  
Coffee Production ◽  
Production Chain ◽  
Market Requirements ◽  
Major Pest ◽  
Significant Yield ◽  
Leucoptera Coffeella ◽  
Coffee Leaf Miner

The coffee leaf miner (CLM) Leucoptera coffeella moth is a major threat to coffee production. Insect damage is related to the feeding behavior of the larvae on the leaf. During the immature life stages, the insect feeds in the mesophyll triggering necrosis and causing loss of photosynthetic capacity, defoliation and significant yield loss to coffee crops. Chemical control is used to support the coffee production chain, though market requirements move toward conscious consumption claiming for more sustainable methods. In this overview, we discuss aspects about the CLM concerning biology, history, geographical distribution, economic impacts, and the most relevant control strategies in progress. Insights to develop an integrated approach for a safer and eco-friendly control of the CLM are discussed here, including bio-extracts, nanotechnology, pheromones, and tolerant cultivars.

scholarly journals Sampling plan for the coffee leaf miner Leucoptera coffeella with sex pheromone traps

2008 ◽  
Vol 132 (6) ◽  
pp. 430-438 ◽  
Author(s):  
T. Bacca ◽  
E. R. Lima ◽  
M. C. Picanço ◽  
R. N. C. Guedes ◽  
J. H. M. Viana
Keyword(s):  
Sex Pheromone ◽  
Sampling Plan ◽  
Leaf Miner ◽  
Pheromone Traps ◽  
Sex Pheromone Traps ◽  
Leucoptera Coffeella ◽  
Coffee Leaf Miner

scholarly journals Toxicity of organic farming‑compatible products to the coffee leaf miner

2013 ◽  
Vol 48 (3) ◽  
pp. 241-248 ◽  
Author(s):  
Madelaine Venzon ◽  
Rodrigo Ferreira Krüger ◽  
Alberto Soto ◽  
Edmar de Souza Tuelher ◽  
Italo Santos Bonomo ◽  
...  
Keyword(s):  
Organic Farming ◽  
Field Trial ◽  
Bordeaux Mixture ◽  
Leaf Miner ◽  
Population Decrease ◽  
Lime Sulphur ◽  
Leucoptera Coffeella ◽  
Coffee Leaf Miner ◽  
Ovicidal Effects ◽  
Eggs And Larvae

The objective of this work was to evaluate the toxicity of organic farming‑compatible products to the coffee leaf miner Leucoptera coffeella. Lime sulphur, enriched Bordeaux mixture (Viça Café Plus), and the "supermagro" biofertilizer were first tested in laboratory. The most promising product was tested afterwards under field conditions. In laboratory, different concentrations of each product were applied on L. coffeella eggs and on infested coffee‑mined leaves. Only lime sulphur had ovicidal effects at an acceptable concentration (1.6%) for field applications, but no significant effect on larvae mortality was found. Enriched Bordeaux mixture and the "supermagro" biofertilizer had no effect on L. coffeella eggs and larvae. In the field trial, biweekly or monthly sprayings of lime sulphur at different concentrations caused population decrease after 30 days; however, this effect was not significant after 60 or 90 days.

Common Origin of Brazilian and Colombian Populations of the Neotropical Coffee Leaf Miner, Leucoptera coffeella (Lepidoptera: Lyonetiidae)

2019 ◽  
Vol 112 (2) ◽  
pp. 924-931 ◽  
Author(s):  
Laura M Pantoja-Gomez ◽  
Alberto S Corrêa ◽  
Luiz Orlando de Oliveira ◽  
Raul Narciso C Guedes
Keyword(s):  
Common Origin ◽  
Leaf Miner ◽  
Leucoptera Coffeella ◽  
Coffee Leaf Miner

Time‐concentration interplay in insecticide resistance among populations of the Neotropical coffee leaf miner, Leucoptera coffeella

2020 ◽  
Author(s):  
Suzany A. Leite ◽  
Mateus P. Santos ◽  
Daniela R. Costa ◽  
Aldenise A. Moreira ◽  
Raul Narciso C. Guedes ◽  
...  
Keyword(s):  
Insecticide Resistance ◽  
Leaf Miner ◽  
Leucoptera Coffeella ◽  
Coffee Leaf Miner
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