Two new species of the dikraneurine leafhopper genus Karachiota Ahmed are reported from China: Karachiota recurva sp. nov. and Karachiota aristata sp. nov.. A key of all species of the genus is provided. 

The tea green leafhopper, Empoasca onukii Matsuda (Hemiptera: Cicadellidae, Typhlocybinae), is a serious pest of plants in East Asia. In the laboratory, genotypes CA278, Cd19, and Cd289 [Camellia sinensis (L.) O. Kuntze (Theaceae)] sustain fewer feeding damage symptoms known as hopperburn than susceptible cultivar ‘Yabukita,’ E. excretes less honeydew on them Yabukita. Here, we evaluated whethe...

Beet curly top virus (BCTV), transmitted by the beet leafhopper (Circulifer tenellus) has caused significant problems to irrigated agriculture in the western United States since the late 1800s. Although managed annually through an intensive leafhopper eradication program, BCTV re-emerged in 2001 as a serious threat to agriculture in California's San Joaquin Valley. BCTV infects a broad range of...

This study evaluated how the proportional area of natural habitat surrounding a vineyard (i.e. landscape diversity) worked in conjunction with crop vigor, cultivar and rootstock selection to influence biological control of the western grape leafhopper (Erythroneura elegantula Osborn). The key natural enemies of E. elegantula are Anagrus erythroneurae S. Trjapitzin & Chiappini and A. daanei Tria...

Patterns of starch accumulation in alfalfa,Medicago sativa L., were studied in response to injury causedbypotato leafhopper,Empoasca fabae (Harris).Using image analysis of iodine-stained leaf tissues, we compared lightness scores of leaves from leafhopper-injured and healthy plants sampled at early morning and mid-afternoon. In addition, we related lightness scores to standard chemical analyses...

The paper provides new distributional data for 5 planthopper and 61 leafhopper species, recorded from the Bieszczady Mountains (south-eastern Poland), including 35 taxa listed as region.

A new leafhopper genus, Bhatiahamus gen. nov., is established for B. flabellatus (Shang & Shen) n. comb. (Bhatia) (type species) and B. sinuatus sp. nov., both from China. A key to distinguish the two species is provided. 

Two new species of the leafhopper subgenus Empoasca (Empoasca) namely, E. (E.) dorsodenticulata Yu & Yang, sp. n. and E. (E.) spiculata Yu & Yang, sp. n. from China are described and illustrated and a key provided for Chinese subgenera of Empoasca.

Three new species of the Oriental empoascine leafhopper genus Dayus Mahmood are described from China: D. bifurcatus sp. n., D. trifurcatus sp. n. and D. serratus sp. n. A key to distinguish all Chinese species of the genus is provided.

Removal samples from an irrigated pasture were used as a calibration technique for the D-Vac. Plots 4 m2 were enclosed with a frame, and 1 initial and 3 removal samples were taken. Equations are given for computing the population and probability of collecting an insect. For leafhopper adults, leafhopper nymphs, Orius insidiosus (Say), and corn flea beetle, Chaetocnema pulicaria Melsheimer, cali...