Laboratory evaluation of the effectiveness of some chemical pesticide and biopesticides and their combinations in the control of tomato leafminer Liriomyza bryoniae

A laboratory study was carried out to evaluate the effectiveness of the chemical pesticides Actara, Abamectin, Oxymatrim, and two bioformulation Varanestra (V. lecanii) and Almite (H. thompsonii) and their combination on adults and pupae of the Liriomyza bryoniae. The results showed that the most compatibility pesticide with V.lecanii and H.thompsonii were Actara, while Abamectin and Oxymatrine did not showed compatibility with these fungi. The treatment of Abamectin was superior in adult mortality 55.56% at the half-field concentration (FC-50%), followed by Actara was 46.67%, while the lowest mortality percentage of Oxymatrine treatment was 38.89%. The treatment of Varunestra was significantly higher in mortality percentage of adults was 55.60%, while the lowest mortality percentage for Almite treatment was 42.20%. There was no significant difference in adults mortality percentage for both the mixture (Actara + Varunestra) and the mixture (Actara + Almite), which reached 56.66% and 52.22%, respectively. The treatment of the mixture (Actara + Varunestra) was superior In reducing adults emergence percentage from pupae of 8.88%, which did not differ significantly from the treatment of the mixture (Actara + Almite), which reached to 12.22%.Results showed that Actara was compatibility with two bioformulation Varanestra (V.lecanii) and Almite (H. thompsonii) to control adults and pupae of the Liriomyza bryoniae. http://dx.doi.org/10.25130/tjps.24.2019.041

Kairomone Attractant for the Leafmining Fly, Liriomyza bryoniae (Diptera, Agromyzidae)

A field test carried out in an industrial greenhouse in Lithuania revealed the attractiveness of synthetic methyl salicylate (MeSa) towards an economically important leafmining tomato pest, Liriomyza bryoniae (Kaltenbach) (Diptera, Agromyzidae). The behavioural reaction of the flies depended very much on the simultaneous presence of both olfactory and visual stimuli. The attractiveness depended on the colour of a sticky trap: MeSa attracted significantly more flies (ca. 2.2 times) when placed in yellow traps than in aluminium foil colour ones, when catches in such traps were compared to a corresponding control. L. bryoniae is the first species within the Agromyzidae family attracted by MeSa. The attractant was attributed to kairomones, as the compound is known as a plant-produced volatile. MeSa can be an effective extra-tool for increasing the attractiveness of traps. It should be evaluated in future whether such trap/bait combination is effective for the mass trapping of L. bryoniae leafminers in greenhouses (closed area).

Liriomyza bryoniae kltb. (Diptera: agromyzidae): An important pest in glasshouse vegetables

Tomato leaf miner Liriomyza bryoniae Kltb. found in glasshouses in the area of Lazarevac was investigated. Morphological characteristics, development host plants and harmful effects caused to selected vegetables were studied. The leaf miner infestation had caused deterioration of local cucumber crops causing and average 4.64 injury category, and an average 95.67% damage to the assimilation surface. Tomato was also affected, but the injury was in considerably lower degree (level 4.0), and some injury was found on pepper (level 2.0). The miner was merely recorded to be present in garden bean (injury level 0-1). Attention is drawn to the need for timely insecticide treatments, as well as compounds that could be used to control L. bryoniae.

Liriomyza bryoniae. [Distribution map].

A new distribution map is provided for Liriomyza bryoniae (Kaltenbach) Diptera: Agromyzidae Polyphagous, particularly damaging to cabbage (Brassica oleracea var. capitata), cucumber (Cucumis sativus), lettuce (Lactuca sativa), courgette (Cucurbita pepo), melon (Cucumis melo), tomato (Lycopersicon esculentum) and watermelon (Citrullus lanatus). Information is given on the geographical distribution in EUROPE, Albania, Belgium, Bulgaria, Czech Republic, Denmark, Finland, France, Mainland France, Germany, Greece, Crete, Mainland Greece, Hungary, Italy, Sicily, Lithuania, Malta, Moldova, Netherlands, Norway, Poland, Portugal, Azores, Romania, Russia, Central Russia, Southern Russia, Western Siberia, Spain, Mainland Spain, Sweden, UK, Channel Islands, England and Wales, Ukraine, ASIA, China, Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hainan, Hebei, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Sichuan, Yunnan, Zhejiang, India, Maharashtra, Israel, Japan, Korea Republic, Nepal, Taiwan, Turkey, Turkmenistan, AFRICA, Egypt, Morocco.