Vidal Hernández-García

• Doctor of Science
• Professor at Universidad de Ciencias y Artes de Chiapas

La ganadería se enfrenta a cambios y desafíos ambientales y socioeconómicos, por lo que resulta indispensable conocer la conformación de los sistemas de producción y sus limitantes, que permitan el desarrollo de una gestión integral en las unidades productivas. El objetivo de esta investigación fue caracterizar unidades de producción ganaderas e id...

Since 2020, camedor palm (Chamaedorea quezalteca) plantations in the Frailesca region, Chiapas, Mexico, have been affected by foliar diseases that induce leaf spot and anthracnose symptoms that reduce production, leaf quality and thus the loss of their commercial value. The objectives of this work were to identify the causal agents and to quantify...

Salicylic acid and Azospirillum brasilense stimulate plant growth and productivity. In some environments, plant physiology similarly responds to both bioactive products. Considering this, a field experiment was conducted to study the physiological effect of Salicilic acid and A. brasilense on growth and grain yield of maize plants. The experiment i...

Oil palm, Elaeis guineensis Jacq., is one of the most important oil crops in Mexico. The study aimed to record herbivory, damage, and taxonomic identity of Automeris moloneyi Druce 1897 (Lepidoptera: Saturniidae) in nine commercial oil palm plantations at Tabasco, Mexico. In each plantation, 30 palm trees were selected in which A. moloneyi was sear...

El aluminio es el elemento más limitante del crecimiento de las plantas en suelos ácidos. Estudiar el efecto de este elemento en las plantas contribuye a mejorar las prácticas agrícolas. El objetivo de este estudio fue evaluar el efecto del aluminio en plántulas de maíz (Zea mays L.), bajo la hipótesis de que el aluminio en concentraciones menores...

Larvae of the sawfly, Monoctenus sanchezi Smith, are phytophagous on white cedar (Juniperus flaccida Schlechtendal). We report for the first time Zelus tetracanthus (Stl) and Pselliopus zebra (Stl) (Hemiptera: Reduviidae) and Copestylum caudatum Curran (Diptera: Syrphidae) as predators of the sawfly, which constitute new host records and extend the...

Tomatoes are affected by fungi of the genera Fusarium and Alternaria, reducing the quantity and quality of the fruit.Since plant extracts are an alternative for the control of phytopathogenic fungi, the antifungal effect of Salmea scandens extracts was evaluated against Fusarium oxysporum and Alternaria solani and the functional groups of the chemi...

p> Background: The water deficit and the low availability of nutrients are factors that limit the growth and productivity of cultivated plants. Objective: To evaluate the effect of nitrogen and water availability on growth, chlorophyll concentration and photosynthetic efficiency of guava plants ( Psidium guajava L. var. cuban red dwarf). Methodolog...

RESUMEN El aluminio es el elemento más limitante del crecimiento de las plantas en suelos ácidos. Estudiar el efecto de este elemento en las plantas contribuye a mejorar las prácticas agrícolas. El objetivo de este estudio fue evaluar el efecto del aluminio en plántulas de maíz (Zea mays L.), bajo la hipótesis de que el aluminio en concentraciones...

Fall armyworm, Spodoptera frugiperda (J.E. Smith) (Lepidóptera: Noctuidae), is the most important insect pest of maize, Zea mays L., because it causes great economic loss and insecticide to be overused for its control, which increase costs of production and contaminate the environment. However, the pest is naturally controlled by various parasitoid...

The red palm mite, Raoiella indica Hirst, is a pest recently introduced and propagating in the Neotropical region where the extent of potential damage to cultivars of Musa spp. is not well known. Three basal leaves of each young ‘Dwarf Giant’ banana (Musa AAA Cavendish), ‘Horn’ plantain (Musa AAB Plantain), and ‘Date’ banana (Musa AA Sucrier) were...

Production of maize, Zea mays L., for forage at Chiapas, México, is important for animal feed. However, with a recent objective to produce more forage, association of maize with other crops including Johnsongrass, Sorghum halepense (L.) Pers., has increased. But association has brought infestation by new pests. The objective of this research was to...

The red palm mite, Raoiella indica Hirst (Acari: Tenuipalpidae), is a pest recently introduced to Mexico, and is under epidemiological surveillance. In order to reduce its expansion and damage, several phytosanitary activities are carried out, including sampling, diagnosis, and control of infestation points, by means of sanitary pruning and applica...

Sugarcane borer, Diatraea saccharalis (Fabricius) (Lepidoptera: Crambidae), is a key insect pest that affects crop yield in Mexico. Immature stages of the pest are naturally attacked by a complex of parasitoids. We identified the parasitoid Siphosturmia rafaeli (Townsend) to be a new record at Tabasco, Mexico, and reported a new host.

Stalk borers (Diatraea spp.) are important pests of maize, Zea mays L., in the Neotropical region. The objective of this research was to identify the Diatraea species and assess the injury they cause and their effect on yield of maize at Tabasco, Mexico. In total, 199 larvae and 54 pupae were found infesting 319 (62.4%) of 511 plants sampled. Speci...

Sugarcane borer (Lepidoptera: Pyralidae) feeds on buds and shoots of young plants and tunnels in stalks, causing yield loss and affecting juice quantity and quality of harvested sugarcane (Saccharum officinarum L.). The objective of this research was to evaluate pest damage and identify borer species at La Chontalpa, Tabasco, Mexico. Samples were c...

Incidence of potato purple top, and abundance of its vectors, the potato psyllid, Bactericera cockerelli (Sulc) (Hemiptera: Psyllidae), and leafhoppers (Empoasca spp. and Macrosteles spp.) were monitored in three production sites and four crop cycles (2004–2007) in the potato, Solanum tubersum L., growing region of Coahuila and Nuevo León, México....