The Chavimochic irrigation project is one of the leading projects in Peru. In this project, irrigation water is derived from the Santa river to irrigate the valleys of Chao, Viru, and Moche, including desert zones between valleys. In this study, we aimed to characterise the Hass avocado and asparagus farms in desert areas of the Chavimochic irrigation project. Social, economic and environmental information was collected through structured surveys of 12 asparagus and 17 avocado farms. Four groups of asparagus farms and three groups of avocado farms were identified based on principal component and cluster analyses. Profitability of the avocado crop was higher than that of the asparagus crop, and irrigation caused more significant variability in the crop yield of avocado than that of asparagus. From the social perspective, the income of farm personnel was related to the level of education, ...

Gray mold, caused by Botrytis cinerea, is one of the most important plant diseases in Strawberry in Peru. Because of its high variability and its pathogenic characteristics, proper fungicides use is essential to control this disease. The aim of this study was to evaluate the effect of five chemical fungicides: Tryfloxistrobin (0.0625%), Pyrimethanil + Fluopyram (0.1%), Pyrimethanil (0.1%), Fenhexamid (0.135%) and Carbendazim (0.125%), and two biological fungicides: Bacillus subtilis QST713 (0.75%) and Bacillus pumilus QST2808 (0.75%) in laboratory and field conditions. In the laboratory phase, the inhibition of mycelial growth was measured by evaluating diameter growth at 4 DAI (p≤0.05). Furthermore, conidial germination inhibition was evaluated in two different ways. First, one hundred conidia were placed in sterile water with fungicide and evaluated at 24 HAI (p≤0.05). Second, the ...

La producción de Arándanos en Perú ha tenido un rápido crecimiento en los últimos cinco años, pasando de no tener una superficie de más de 3050 hectáreas en la actualidad. Como resultado de este aumento, han aparecido muchos problemas patológicos de las plantas, entre ellos Phytophthora sp. provocando plantas con síntomas de marchitez, rojizo de hojas inferiores, muerte regresiva, pudrición de raíces y copa de diferentes zonas de producción del Perú. Sin embargo, no se reporta identificación en Perú. Por ello, este estudio se realizó en la Clínica de Fitopatología de la Universidad Nacional Agraria La Molina con el objetivo de identificar las especies de Phytophthora.causando pudrición de la corona y la raíz aislada del arándano en Perú. Se identificaron cuatro aislamientos del campo de arándanos por características morfológicas, moleculares y patogénicas. Todo...

Phytophthora capsici is one of the most devastating pathogens that limits the production of Paprika (Capsicum annuum L.) worldwide. Likewise, Trichoderma viride stands out as a biological agent due to its antagonistic effect, resistance inducer, growth stimulator, etc. The present work evaluated the effectiveness of T. viride as a biocontrol agent against P. capsici in Paprika using three growth methods (direct seeding, plantlet and bare root). Twelve treatments were developed under greenhouse conditions, including a control (without inoculum) and a completely randomized design with a factorial arrangement. T. viride inoculation was carried out 40 days after sowing at a concentration of 106 conidia ml-1 while P. capsici was inoculated 50 days after sowing using three colonized wheat grains per plant. The inoculation method of the controlling agent in the direct seeding and pla...