First Report of Ophryocystis elektroscirrha Parasitizing Danaus gilippus1 in Central Mexico

AbstractNative parasitoids of the adult Mexican corn leafhopper, Dalbulus elimatus (Ball), and corn leafhopper, Dalbulus maidis (Delong and Wolcott), are described and their rates of parasitism on maize, Zea mays L., common barley, Hordeum vulgare L., and sorghum, Sorghumbicolor (L.) Moench (Poaceae) in central Mexico are determined. The survey was conducted throughout an annual cycle, with sampling of the previous season's crops when they were available. Leafhoppers showing evidence of parasitism were reared individually in the laboratory to obtain adult parasitoids. Adult D. elimatus were parasitized on winter maize, barley, and sorghum by the fly Eudorylas subopacus (Loew) (Diptera: Pipunculidae) and the wasp Gonatopus bartletti Olmi (Hymenoptera: Dryinidae), whereas adult D. maidis were parasitized by these fly and wasp parasitoids on winter maize only. The highest rates of parasitism of D. elimatus by E. subopacus were 57.4% on maize, 39.6% on barley, and 48.8% on sorghum. The highest rate of parasitism of D. maidis by E. subopacus was 20.4% on maize. In contrast, the highest rates of parasitism of D. elimatus by G. bartletti were 9.4% on maize, 2.7% on barley, and 25.8% on sorghum. The highest rate of parasitism of D. maidis by G. bartletti was 7.1% on maize. These results indicate that winter crops are habitats of E. subopacus and G. bartletti during the winter season. This is the first report of D. elimatus and D. maidis being parasitized by E. subopacus and of D. elimatus being parasitized by G. bartletti.

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First Report of the Armillaria Root-Disease Pathogen, Armillaria gallica, Associated with Several Woody Hosts in Three States of Central Mexico (Guanajuato, Jalisco, and Michoacán)

Plant Disease ◽

10.1094/pdis-06-20-1274-pdn ◽

2021 ◽

Vol 105 (1) ◽

pp. 222

Author(s):

E. Duarte-Mata ◽

R. D. Elías-Román ◽

N. B. Klopfenstein ◽

J. W. Hanna ◽

M.-S. Kim

Keyword(s):

Root Disease ◽

Central Mexico ◽

First Report ◽

Armillaria Gallica ◽

Armillaria Root Disease

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Detection of mucormycosis caused by Apophysomyces elegans in a Lesser Long-nosed Bat (Leptonycteris yerbabuenae) in Central Mexico

Neotropical Biology and Conservation ◽

10.3897/neotropical.16.e73365 ◽

2021 ◽

Vol 16 (4) ◽

pp. 493-499

Author(s):

Teresa López-Romero ◽

O. Eric Ramírez-Bravo ◽

E. Evangelina Camargo-Rivera ◽

Daniel Jiménez-García ◽

Héctor Bernal-Mendoza ◽

...

Keyword(s):

Laboratory Analysis ◽

Central Mexico ◽

Infection Cycle ◽

First Report ◽

Wild Host ◽

Leptonycteris Yerbabuenae

We describe a case of mucormycosis in a Lesser Long-nosed Bat (Leptonycteris yerbabuenae) caused by Apophysomyces elegans in Puebla, Central Mexico. The diagnosis was supported by laboratory analysis and necropsy. We present the first report of the fungus in a wild host; therefore, we indicate that further studies are necessary to understand its infection cycle since this pathogen may indicate a risk of zoonotic, and anthropozoonotic diseases.

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Geographic and Host Range of Meloidogyne spp. in North Central Mexico

Plant Disease ◽

10.1094/pdis.2001.85.4.445a ◽

2001 ◽

Vol 85 (4) ◽

pp. 445-445 ◽

Cited By ~ 1

Author(s):

R. Velásquez-Valle

Keyword(s):

Prunus Persica ◽

Central Mexico ◽

Root Knot Nematode ◽

Dry Bean ◽

North Central ◽

First Report ◽

San Luis ◽

San Luis Potosi ◽

Meloidogyne Spp ◽

San Luis Potosí

A disease survey carried out in 1998, 1999, and 2000 in the states of Aguascalientes, San Luis Potosí, and Zacatecas revealed the dispersal of Meloidogyne spp in this region of Mexico. Pepper (Capsicum annuum L.) Mirasol type plants showing general chlorosis, root rot, and galls were observed in central Zacatecas and western San Luis Potosí. Dry bean (Phaseolus vulgaris L.) plants (Landrace Flor de Mayo) collected in western San Luis Potosí and Aguascalientes also showed root galls. Roots of squash (Cucurbita spp) and sunflower (Helianthus annuus L.) plants that showed galled roots were found under dryland conditions in northern Zacatecas. Nursery peach (Prunus persica L.) plantlets with no foliar symptoms but showing severe root galling were detected in Zacatecas. Perineal patterns of Meloidogyne females obtained from those galled roots were coincident with those of M. incognita according to pictoral keys (1). This is the first report of M. incognita affecting these hosts in that region of the country. Alfalfa (Medicago sativa) plants collected in Aguascalientes showed galls caused by Meloidogyne spp; this is the first report of this nematode affecting alfalfa in the state. Volunteer onion (Allium cepa L., ‘Grano Blanco’) plants growing in a squash field in eastern Zacatecas had galled roots; a few Meloidogyne spp. females were obtained from small galls. This is the first report of the root-knot nematode affecting onion plants in north central México. Onion is known to be a host for several species of this nematode (2). Stunted, chlorotic squash plants had roots severely galled by Meloidogyne spp, but pepper crops growing in the same field in previous years showed general chlorosis, reduced size, and poor yield did not have root galls. References: (1) Eisenback, J. D., et al. 1983. Guia para la identificación de las cuatro especiales más comunes del nematodo agallador (Meloidogyne spp.) con una clave pictorica. International Meloidogyne Project, Raleigh, NC. (2) Schwartz, H. F., and Mohan, S. K. 1995. Compendium of onion and garlic diseases. American Phytopathological Society. St. Paul. MN.

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First Report of Arceuthobium vaginatum subsp. vaginatum on Pinus pseudostrobus

Plant Disease ◽

10.1094/pdis.2004.88.9.1046b ◽

2004 ◽

Vol 88 (9) ◽

pp. 1046-1046

Author(s):

R. Mathiasen ◽

A. Flores ◽

H. Miranda ◽

L. Cadio

Keyword(s):

Severe Infection ◽

Central Mexico ◽

Dwarf Mistletoe ◽

Nuevo Leon ◽

First Report ◽

Nuevo León ◽

Lower Elevation ◽

High Level ◽

Pinus Spp ◽

Pinus Pseudostrobus

Arceuthobium vaginatum (Willd.) Presl subsp. vaginatum (family Viscaceae) is the most widespread and common dwarf mistletoe in Mexico (2). Although most dwarf mistletoes are considered to be relatively host-specific parasites, this species has the broadest host range found in the genus. It has been reported to infect 13 species of pines (Pinus spp., family Pinaceae) (2). Pinus pseudostrobus Lindl. is a common pine within the geographic range of A. vaginatum and has been reported as possibly being immune to this mistletoe (2). However, we have found a location in the Sierra Madre Oriental, Nuevo Leon, Mexico where A. vaginatum subsp. vaginatum is severely parasitizing P. pseudostrobus. The stand of infected P. pseudostrobus is located approximately 3 km east of Laguna de Sanchez(25°19′42″N, 100°15′45″W, elevation 1,950 m). Several hundred P. pseudostrobus are infected at this location; several trees in the stand have one or more dwarf mistletoe infections on nearly every branch and many trees have bole infections. P. pseudostrobus is the only pine growing at this locality, and the extent of infection on this pine clearly indicates it is highly susceptible to A. vaginatum subsp. vaginatum. Hawksworth and Wiens (2) based their tentative classification of P. pseudostrobus as immune to A. vaginatum subsp. vaginatum on observations of uninfected P. pseudostrobus growing near severely infected pines in central Mexico. The discrepancy between the susceptibility of P. pseudostrobus in central Mexico and in Nuevo Leon may be related to the different taxonomic classifications afforded these populations by different pine taxonomists. For example, Perry (3) considers the populations of P. pseudostrobus growing in Nuevo Leon to represent P. pseudostrobus forma megacarpa Loock, while Farjon and Styles (1) treat these populations as typical P. pseudostrobus. Whether the high level of susceptibility of the P. pseudostrobus population near Laguna de Sanchez indicates these populations are taxonomically distinct from typical P. pseudostrobus needs further study, but the severe infection we observed in Nuevo Leon clearly demonstrates that P. pseudostrobus should be reclassified as a principal host of A. vaginatum subsp. vaginatum in northeastern Mexico. Specimens of A. vaginatum subsp. vaginatum on P. pseudostrobus have been deposited at the Deaver Herbarium, Northern Arizona University, Flagstaff (Accession No. 76455). To our knowledge, this is the first report of A. vaginatum subsp. vaginatum on P. pseudostrobus. It should also be noted that the population of A. vaginatum subsp. vaginatum near Laguna de Sanchez is 150 m below the lower elevation limit previously reported for this dwarf mistletoe in Mexico (2). References: (1) A. Farjon and B. Styles. Pinus (Pinaceae). Flora Neotropica, Monogr. 75. NY Bot. Gard., 1997. (2) F. Hawksworth and D. Wiens. Dwarf mistletoes: Biology, pathology, and systematics. USDA For. Serv. Agric. Handb. 709, 1996. (3) J. P. Perry. The Pines of Mexico and Central America. Timber Press, Portland, OR, 1991.

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First Report of Beet mild curly top virus Infection of Chile Pepper in North-Central Mexico

Plant Disease ◽

10.1094/pdis-92-4-0650a ◽

2008 ◽

Vol 92 (4) ◽

pp. 650-650 ◽

Cited By ~ 9

Author(s):

R. Velásquez-Valle ◽

M. M. Medina-Aguilar ◽

R. Creamer

Keyword(s):

Disease Incidence ◽

Management Strategies ◽

Central Mexico ◽

Coding Region ◽

Chile Pepper ◽

North Central ◽

Disease Symptoms ◽

First Report ◽

Circulifer Tenellus ◽

Three Samples

During the 2005 growing season, widespread virus-like symptoms were observed in pepper (Capsicum annuum) fields in north-central Mexico. Early in the season, plants were chlorotic and stunted with thickened, elongated leaves. From mid to late season, the affected plants showed severe yellowing, upwardly rolled, small leaves, and a few deformed fruits. Symptoms were similar to those described for curtoviruses in pepper (1). The leafhopper vector of curtoviruses, Circulifer tenellus, was first reported in the area in 1953 (3) (its presence was confirmed again in January 2008). Pepper fields were sampled in the states of Aguascalientes and Zacatecas, and five symptomatic plants from Zacatecas tested positive for the presence of curtoviruses by PCR using primers to the coat protein (CP) coding region (2). PCR amplicons from three samples of Ancho and Mirasol pepper types from Zacatecas, which also tested positive by PCR using the rep coding region (2), were sequenced and compared with reported curtoviruses. The samples showed 91% identity with the CP coding region and 93% identity with the rep coding region of Beet mild curly top virus (formerly the Worland strain). A survey of pepper fields from Aguascalientes and Zacatecas based on symptomatic plants was conducted from July to August of 2005. Forty-three fields of different types of pepper, including those growing under mulch and drip irrigation, were surveyed. Twenty-five plants in each of five contiguous rows were inspected for the symptoms described above. Disease symptoms were noted in Mirasol, Ancho, Pasilla, and Guajillo pepper types, and the average disease incidence was 9.87% (range: 1.6 to 48%), 15.2% (range: 6.4 to 25.6%), 7.85% (range: 2.4 to 15.2%), and 20.8% (range: 8 to 33.6%), respectively. To our knowledge, this is the first report of curtovirus infection of chile pepper in this region of Mexico. The moderate level of curtovirus infection found here suggests the need to initiate management strategies for this disease. References: (1) L. L. Black et al. Page 98 in: Pepper Diseases. A Field Guide. AVRDC, Taiwan, 1991. (2) R. Creamer et al. Plant Dis. 89:480, 2005. (3) D. A. Young and N. W. Frazier. Hilgardia 23:25, 1954.

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Distribution extension of Syphacia (Seuratoxyuris) peromysci Harkema, 1936 (Nematoda, Syphaciinae) parasitizing the Rock Mouse, Peromyscus difficilis (J. A. Allen, 1891) (Rodentia, Neotominae) in central Mexico

Check List ◽

10.15560/12.3.1912 ◽

2016 ◽

Vol 12 (3) ◽

pp. 1912 ◽

Cited By ~ 1

Author(s):

Jorge Falcón-Ordaz ◽

Jesús A. Fernández ◽

Belén Aline Ruíz-Vázquez

Keyword(s):

Central Mexico ◽

Helminth Parasites ◽

First Report ◽

Ongoing Project

As a part of an ongoing project in order to inventory the helminth parasites of rodents in Mexico, 49 individuals of Syphacia (Seuratoxyuris) peromysci were collected from five specimens of the Rock Mouse Peromyscus difficilis caught in Veracruz state, Mexico. This is the first report of S. peromysci in a Mexican endemic rodent, widening the known distribution of the species to the southern portion of the country.

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First Report of Cladocolea cupulata on Pinus douglasiana and P. herrerai in Northern Mexico

Plant Disease ◽

10.1094/pd-90-0681c ◽

2006 ◽

Vol 90 (5) ◽

pp. 681-681

Author(s):

S. Kenaley ◽

B. Howell ◽

R. Mathiasen

Keyword(s):

The State ◽

Border Region ◽

The Other ◽

Central Mexico ◽

Arnold Arbor ◽

First Report ◽

Northern Mexico ◽

Northern Arizona ◽

Northern Arizona University ◽

Pinus Spp

The mistletoe Cladocolea cupulata Kuijt (Loranthaceae) has previously been reported parasitizing pines (Pinus spp., Pinaceae) in central Mexico (3). As of today, reported pine hosts have been Pinus jaliscana Pérez de la Rosa and P. lumholtzii B.L. Rob. & Fernald from the state of Jalisco (1,2). During July 2005, we found this mistletoe parasitizing P. douglasiana Martinez and P. herrerai Martinez along Route 40 in Durango approximately 8 km east of El Palmito (23°35′54″N, 105°50′45″W, elevation 2,000 m). We also found the mistletoe on P. douglasiana along Route 40 at approximately 18 km west of El Palmito (23°27′51″N, 105°49′58″W, elevation 1,780 m) in the state of Sinaloa. Additional populations of this mistletoe were observed along the roadside of Route 40 in the Sinaloa-Durango border region. Infected trees had one to five mistletoe plants on them. Comparing infected hosts with neighboring noninfected hosts, the mistletoe appeared to have no effect on the growth of the infected trees. No mortality associated with mistletoe infection was observed for either of these mistletoe-host combinations. C. cupulata can be distinguished from its closest relatives, C. grahami Kuijt and C. pringlei Kuijt, by its longer, narrower, opposite leaves, parallel venation, and the saddle-like peduncles that hold four flowers (3). The other taxa have predominantly alternate leaves with pinnate venation and lack the saddle-like peduncle. To our knowledge, this is the first report of C.cupulata parasitizing P. douglasiana and P. herrerai and the first report of this mistletoe from the states of Durango and Sinaloa (2,3). Specimens of C. cupulata and host material were collected and have been deposited at the Deaver Herbarium (ASC), Northern Arizona University, Flagstaff (Accession Nos. 79532, 79533, and 79536). References: (1) B. Chazado. Biosphera 1:3, 1990. (2) B. Geils et al. USDA For. Serv. Gen. Tech. Rep. RMRS-GTR-98, 2002. (3) J. Kuijt. J. Arnold Arbor. Harv. Univ. 56:265, 1975.

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First Report of Aedes albopictus in Guerrero State, Mexico

Journal of the American Mosquito Control Association ◽

10.2987/19-6829.1 ◽

2019 ◽

Vol 35 (4) ◽

pp. 285-287 ◽

Cited By ~ 4

Author(s):

Cassandra González-Acosta ◽

Fabián Correa-Morales ◽

Israel Canche-Aguilar ◽

Rufino Silva-Domínguez ◽

Ma. Concepción Salgado-Alonzo ◽

...

Keyword(s):

Invasive Species ◽

Pacific Ocean ◽

Gulf Of Mexico ◽

Aedes Albopictus ◽

Disease Transmission ◽

Central Mexico ◽

First Report ◽

The Pacific ◽

The Pacific Ocean ◽

Vector Borne

ABSTRACT In 1988, Aedes albopictus was first described in Mexico. Since then, it has been recorded in most of the coastal states that have a shoreline on the Gulf of Mexico, 3 states in Central Mexico and 2 states on the coast of the Pacific Ocean. This is the first report documenting the presence of this invasive species in Guerrero, a state with coastlines on the Pacific Ocean. This evidence suggests that the distribution of Ae. albopictus is expanding throughout Mexico. It remains unknown the extent to which Ae. albopictus contributes to vector-borne disease transmission in this country; however, the risk should not be neglected

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