<p>The COVID-19 pandemic, caused by SARS-CoV-2, caused productive disruptions in the guava production system of the municipality of Calvillo, Aguascalientes. These disruptions included delays in the application of phytosanitary management measures against weevils and fruit flies, pests of quarantine, and economic importance, due to the appearance of positive cases among operational and technical personnel. Manual harvesting, an activity that requires large crews of agricultural workers, was delayed due to labor shortages. The cost and supply of fertilizers and pesticides were also affected due to problems in the supply chains of agro-inputs. The sale price of guava in supply centers and local markets fell on average from 10.83 to 10 MN/kg during the months of highest demand due to a 60% reduction in agricultural activities. In Calvillo, the return of Mexican migrants from the US and the presence of asymptomatic cases influenced the spread of SARS-CoV-2 among the local rural community.</p>

<p>Avocado crop (<em>Persea americana</em>) in Ciudad Guzmán, Jalisco, Mexico, is affected by pests and diseases that have worsened with the COVID-19 (SARS-CoV-2) pandemic. Damage to fruits has increased due to the reduction of the workforce by more than half, which restricts crop sampling and the timely control of pests. Furthermore, the closure of businesses and the consequent lack of agricultural inputs have affected the management and profitability of avocado crop. The restricted access to markets such as Monterrey, Mexico City and Guadalajara has also affected avocado availability.</p>

"Frankliniella occidentalis Pergande 1895 and F. insularis (Thysanoptera, Thripidae) attack Mexican lime at Apatzingan Valley, Michoacán, Mexico. The trips were presents all year, however the number of adults increased of november to june y, and fall of july to october, during period rain and causing high damage to plant when the population of pest increasing of populations. With of objective to evaluate different products in Mexican lime for the control over trips and the impact of natural enemies. We effect two The most important natural enemies of trips were: Chrysoperla rufilabris Burmeister, 1839, Cycloneda sanguínea (L., 1763), Hippodamia convergens Guerin-Meneville, 1842, Olla v-nigrum (Mulsant, 1866) and Zelus renardii (Kolenati, 1857), Sthetorus sp, Leptotrips sp., Orius sp., differents species of spinders and phytosaids. The enemies most important were the crisopids C. rufilabris y C. cincta The best products for the control of trips were El Spirotetramat®, el Pyrofluquinazon, Tolfenpyrad and the mixture Biocrack® plus Fractal®. The protection was 13 to 27 days post aplicación the acord to season yers. Spirotetramat with BioBait were the best treat post sixe day post aplications. The period most suceptibilty was april-may (80% damage fruist mexican lemon)." "Frankliniella occidentalis Pergande 1895 y F. insularis (Thysanoptera, Thripidae) atacan al limón mexicano en el valle de Apatzingán, Michoacán México. Los trips están presentes durante todo el año, con altas poblaciones de noviembre a junio, decrecen de julio a octubre durante el periodo de lluvias y causan un daño económico considerable al cultivo cuando se incrementa su población. Con el objetivo de evaluar productos en lima mexicana para el control de trips y el impacto en los insectos benéficos. Se realizaron dos pruebas de efectividad biológica en diferentes épocas del año en donde se evaluaron 12 productos biorracionales y tres atrayentes alimenticios sobre trips y su impacto en los enemigos naturales. Los principales enemigos naturales encontrados fueron: Chrysoperla rufilabris Burmeister, 1839, Cycloneda sanguínea (L., 1763), Hippodamia convergens Guerin-Meneville, 1842, Olla v-nigrum (Mulsant, 1866) y Zelus renardii (Kolenati, 1857), Sthetorus sp, Leptotrips sp. Orius sp., diferentes especies de arañas y fitoseidos. Los depredadores más abundantes fueron las crisopas C. rufilabris y C. cincta. El Spirotetramat®, el Pyrofluquinazón, Tolfenpirad y la mezcla Biocrack® más Fractal®, fueron losmejores productos para el control de trips. El periodo residual varió de los 13 a 27 días después de aplicado el producto según la época del año. La mezcla Spirotetramat® más BioBait® tuvo un efecto en el control después de seis días. La floración más susceptible al daño de trips fue la de abril-mayo (80% de frutos dañados)."

Oligonychus perseae Tuttle, Baker & Abbatiello (Acari: Tetranychidae) is an economically important pest of avocado (Persea americana Mill.) in Mexico. Resistance reduced the efficacy of broad-spectrum miticides used to control this pest. Identification of reliable and more environmentally friendly alternatives is crucial for reduction of pesticide use in agriculture. This study determined the efficacy of three plant extracts derived from wild species, Petiveria alliacea L. (Phytolaccaceae), Reseda luteola L. (Resedaceae), and Isocoma hartwegii (A. Gray) Greene (Asteraceae) for control of the mite. In vitro and field experiments were done. Ethanolic wild plant extracts from Petiveria alliacea and Isocoma hartwegii killed most mites by 24 hours after application in in-vitro assays. At field conditions, most effective extracts were from Petiveria alliacea and Reseda luteola. Two commercial products derived from Azadirachta indica extract and combination of pepper + garlic extracts had good efficacy at in vitro and field conditions.