scholarly journals THE IMPACT OF (AREA) SIZE, HEIGHTS AND POSITIONS OF YELLOW STICKY TRAPS ON THE ATTRACTION OF THE WHITEFLY, Bemisia tabaci (GENNADIUS)

2015 ◽  
Vol 6 (1) ◽  
pp. 195-202
Author(s):  
A. Afsah ◽  
Farha Fargalla ◽  
Fatina Baiomy
Keyword(s):  
Bemisia Tabaci ◽  
Sticky Traps ◽  
The Impact ◽  
Yellow Sticky Traps

Natural Enemy Community Composition and Impact on Brown Marmorated Stink Bug (Hemiptera: Pentatomidae) Eggs in Minnesota Apple Orchards

2020 ◽  
Vol 49 (2) ◽  
pp. 324-333 ◽  
Author(s):  
Hailey N Shanovich ◽  
Brian H Aukema ◽  
Robert L Koch
Keyword(s):  
Natural Enemies ◽  
Natural Enemy ◽  
Management Practices ◽  
Stink Bug ◽  
Apple Orchards ◽  
Sticky Traps ◽  
Predator Abundance ◽  
Polyphagous Insect ◽  
The Impact ◽  
Yellow Sticky Traps

Abstract Halyomorpha halys is an invasive, polyphagous insect that feeds on many major crops, including apple. Statewide monitoring in Minnesota has shown continued increase of H. halys populations and occurrence of this pest in apple orchards. Potential arthropod natural enemies of H. halys and other pests have not been studied in Minnesota apple orchards. The purpose of this study was to characterize the composition of natural enemy communities; compare their abundances, richness and diversities between apple cultivars using different sampling methods; and assess the impact of natural enemies on sentinel eggs of H. halys in Minnesota apple orchards. Sampling occurred during the summers of 2017 and 2018 on Zestar! and Honeycrisp cultivars in four different apple orchards. In vacuum samples, arachnids, neuropterans, and coccinellids had the highest relative abundances. On yellow sticky traps, anthocorids were the most abundant. The total predator abundance differed between the cultivars sampled across years, with more predators found on Zestar! compared with Honeycrisp. No differences were observed in richness or diversity between cultivars with the exception of yellow sticky traps in 2017, which showed a greater diversity of predators in Zestar!. Despite the abundance of natural enemies sampled, sentinel egg masses deployed in the orchards each summer suffered on average <2% predation and no parasitism across years. Knowledge of differences in predator abundance between cultivars could inform management decisions; however, with current management practices, the potential for biological control of H. halys in conventional apple orchards appears low.

Protocol for semi‐automatic identification of whiteflies Bemisia tabaci and Trialeurodes vaporariorum on yellow sticky traps

2019 ◽  
Vol 143 (6) ◽  
pp. 652-658
Author(s):  
Rob Moerkens ◽  
Nathalie Brenard ◽  
Lien Bosmans ◽  
Eva Reybroeck ◽  
Dirk Janssen ◽  
...  
Keyword(s):  
Bemisia Tabaci ◽  
Trialeurodes Vaporariorum ◽  
Automatic Identification ◽  
Sticky Traps ◽  
Yellow Sticky Traps

scholarly journals Control of mushroom sciarid fly Lycoriella inguena (Dufour) with an azadirachtin-based insecticide

2019 ◽  
Vol 34 (2) ◽  
pp. 111-121
Author(s):  
Tanja Drobnjakovic ◽  
Dejan Marcic ◽  
Ivana Potocnik ◽  
Emil Rekanovic ◽  
Mirjana Prijovic ◽  
...  
Keyword(s):  
Block Design ◽  
Test Chamber ◽  
Experimental Period ◽  
Good Alternative ◽  
Chemical Insecticide ◽  
Sticky Traps ◽  
Significant Difference ◽  
Random Block Design ◽  
The Impact ◽  
Yellow Sticky Traps

The impact of a bioinsecticide based on azadirachtin (Ozoneem trishul 1 %) on the abudance of mushroom flies (Sciaridae: Diptera) was compared to the effect of a commercial formulation of the malathion-based chemical insecticide Etiol tecni. Experiments were conducted in three growing chambers (B6, B7 and B8) of a commercial mushrom farm ?Delta Danube? d.o.o., Kovin. Casing treatments were performed in eight replications in a random block design. The azadirachtin-based bioinsecticide was applied in chamber B8 four times (0.5 ml/m2): during casing and later at seven-day intervals. The standard chemical insecticide based on malathion was applied in chambers B6 and B7 twice (2 x 0.3 ml/m2), on the third and sixth day after casing. In all three chambers, the abudance of mushroom flies was monitored by using yellow sticky traps, which were collected weekly and replaced with new ones four times at seven days intervals. The yellow sticky traps were examined in the laboratory under a binocular microscope to determine the presence and density of mushroom flies. Only one species of mushroom fly, Lycoriella ingenua (Dufour), was found on the yellow sticky traps throughout the experimental period. The average number of sciarid flies per mushroom block 15 and 22 days after treatment (DAT) was significantly lower in the test chamber B8 than in chambers B7 and B6, while there was no significant difference 30 and 36 DAT, compared to the control chamber B6. The average number of sciarid flies per mushroom row throughout the experiment was significantly lower in the test chamber B8 than in chambers B6 and B7. The results of our study suggest that the azadirachtin-based bioinsecticide can suppress populations of the mushroom fly L. ingenua and may provide a good alternative to conventional chemical insecticide.

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