Efficient monitoring of maize orange leafhopper, Cicadulina bipunctata (Hemiptera: Cicadellidae), and small brown planthopper, Laodelphax striatellus (Hemiptera: Delphacidae), in forage maize fields using yellow sticky traps

Abstract

The monitoring of insect pests in fields of forage maize is difficult because plants are tall and grow at a high density. We investigated the effectiveness of colored sticky traps and appropriate conditions for monitoring insect pests in forage maize fields. Large numbers of the maize orange leafhopper, Cicadulina bipunctata Melichar (Hemiptera: Cicadellidae), and the small brown planthopper, Laodelphax striatellus Fallen (Hemiptera: Delphacidae), were collected during the experimental period with yellow and blue sticky traps placed in summer crop forage maize fields. A greater number of insects were trapped in yellow traps relative to blue traps. Traps located at a lower height (40 cm above the ground) attracted larger numbers of C. bipunctata, whereas L. striatellus did not demonstrate a height-dependent preference. These results indicated that yellow-colored sticky traps located at low height are effective for collecting C. bipunctata and L. striatellus simultaneously. Seasonal occurrence data obtained by the yellow sticky traps showed clearer seasonal occurrences than that obtained by two previously developed methods, suction and light traps, indicating that sticky traps are effective for monitoring the seasonal occurrence of these two insects in forage maize fields.

First documented pest outbreak of the herbivorous springtailSminthurus viridis(Collembola) in Europe

“…This method was previously found to be comparable to pitfall trapping of surface‐active arthropods (Norment, ), is already used for other hopping pests of crops [e.g. plant and leaf hoppers (Matsukura et al ., )] and is easier to use than a sticky trap corer (Taverner et al ., ). Sticky traps set in the direct drill with herbicide treatment caught the greatest numbers overall, possibly due to the reduced plant cover diminishing refugia for surface‐dwelling predators, while also stimulating crop growth through reduced competition (Wardle, ).…”

“…The unusually high abundance observed led to an assessment of numbers to ascertain whether this was comparable to any other reported outbreak. To assess abundance, a modified method previously used for assessment of hopping insects (Norment, ; Matsukura et al ., ) and which did not require destructive sampling of experimental plots was set up on 4 July 2013. Yellow sticky boards (Silvandersson, Sweden) were cut in half (12·5 cm × 5·5 cm) and the halves placed centrally within each plot, ~2 m apart ( n = 24).…”

Diversity of Arthropods in Different Rice Varieties in Bantul Regency

“…Besides, yellow is a color that is able to catch various insect pests. Yellow sticky trap attracts more numbers because hemipteran insects are attracted to yellow more than blue color (Kisimoto, 1968;Cooper et al, 2010;Hall et al, 2010;Matsukura et al, 2011). Sweep net is also a frequently used sampling method for arthropods that randomly captures insects in the vegetation or above the ground level.…”

Ecology of the Maize Orange Leafhopper, Cicadulina bipunctata (Melichar) (Hemiptera: Cicadellidae)

“…On these winter crops, first-generation nymphs were found in May 11,19 , suggesting that these crops represent major host plants from overwintering to spring. From late spring to autumn, both adults and nymphs were collected from maize (both the first and second crops) and poaceous weeds such as foxtail grass, goose grass and southern crab grass 11,16 . Numerous C. bipunctata were also collected from autumn crops of oats and barley 19 (from September to December).…”