Food attractants for mass trapping of fruit flies (Diptera: Tephritidae) and its selectivity for beneficial arthropods

Fruit fly control in Uruguay is based mainly on toxic baits which are insufficient to reduce the damage caused by these pests. Therefore, alternative management measures such as mass trapping gain relevance for control of flies. Attractants commercially available were designed mainly for Ceratitis capitata (Wiedemann) (Diptera: Tephritidae). However, they also should be attractive to Anastrepha fraterculus (Wiedemann) (Diptera: Tephritidae) in our fruit orchards. The aim of...

Efficiency of food lures for capture and monitoring of South American Fruit Fly in asian pear orchard

The South American fruit fly, Anastrepha fraterculus (Diptera: Tephritidae) is the most important insect pest in pear tree crops in Southern Brazil. Several studies pointed to the controversial efficacy of some food lures used for capture and monitoring this species in various fruit species. This study aimed to evaluate the efficacy of food lures available in the Brazilian market in capturing and monitoring A. fraterculus in relation to grape juice. The experiment was condu...

Potentiation of soybean resistance against Phakopsora pachyrhizi infection using phosphite combined with free amino acids

Considering the importance of Asian soybean rust (ASR), caused by Phakopsora pachyrhizi, in the decrease in soybean yield, this study investigated the potential of using phosphite combined with l-α-

Free amino acids (referred to as induced resistance [IR] stimulus hereafter) to boost defence responses of soybean plants against P. pachyrhizi infection. Plants were sprayed with water (control), acibenzolar-S-methyl (ASM) or IR stimulus and noninoculated or i...

Effect of L-amino acid-based biostimulants on nitrogen use efficiency (NUE) in lettuce plants

BACKGROUND: Biostimulants are increasingly integrated into production systems with the goal of modifying physiological processes in plants to optimize productivity. Specifically, L-α-amino acid-based biostimulants enhance plant productivity through improved photosynthesis and increased assimilation of essential nutrients such as nitrogen (N). This element is a major component of fertilizers, which usually are applied in excess. Thus, the inefficient use of N fertilizers has generated a seri...

Physiological and biochemical insights into induced resistance on tomato against septoria leaf spot by a phosphite combined with free amino acids

Septoria leaf spot (SLS), caused by Septoria lycopersici, is a destructive disease in tomato. This study investigated the use of phosphite and potassium combined with L-α-free amino acids (named induced resistance (IR) stimulus), to boost tomato defense responses against S. lycopersici infection. Plants were sprayed with water or with the IR stimulus and challenged or not with S. lycopersici. Mycelial growth of S. lycopersici and conidia germinat...