The pink hibiscus mealybug, Maconellicoccus hirsutus (Green), is a highly polyphagous pest that invaded southern Florida in 2002 and is now widely established throughout most of the state. Although Hibiscus rosa-sinensis L. is a preferred and economically important host of M. hirsutus , the susceptibility and expression of feeding symptoms by different cultivars have not been evaluated. Cultiva...

Two species of mealybugs, Tridiscus sporoboli (Cockerell) and Trionymus sp., have emerged as potentially serious pests of turf-type buffalograss, Buchloe dactyloides (Nuttall) Engelmann. Sixty-two buffalograss selections were screened for resistance to these mealybugs in 4 greenhouse trials. Using a 1-6 rating scale (1 = no signs of mealybugs, 6 = >75% of tillers infested), 'Prairie' and '609' ...

Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae) has been the current topic of research for insect taxonomists and applied entomologists in India due to its invasiveness, rapid spread, morphological and biological variations and the need for establishing an effective control strategy. The biology of the mealybug P. solenopsis was studied on cotton under laboratory conditions between A...

I N 1921, SCHRADER first reported the unusual cytological system in a mealy bug Pseudococcus nipae (Mask.). Further work by SCHRADER (1923a) and HUGHES-SCHRADER (1935) resulted in an exact characterization of a system of chromosome behavior which has been named “lecanoid.” These and other studies are discussed in HUGHES-SCHRADER’S ( 1948) comprehensive review of coccid cytology. One set of chro...

nephus (bipunctatus) bipunctatus (kugelann) is a predator of peliococcus kimmericus (kiritshenko) (hem.: pseudococcidae) on lactuca serriola l. in different parts of the fars province, iran. some parasitized larvae of this predaceous ladybird were collected, and two parasitoid wasps, homalotylus flaminius (dalman) and h. sinensis xu & he (hym.: encyrtidae), reared from these larvae in the labor...

In Pakistan, the cotton mealybug, Phenacoccus solenopsis Tinsley (Sternorrhyncha (Homoptera): Pseudococcidae), is a serious pest of many cultivated plants. A parasitoid, Aenasius bambawalei Hayat (Hymenoptera: Encyrtidae), is associated with P. solenopsis. In order to mass rear A. bambawalei for a biological control program, it is important to investigate the parasitoid’s host stage preference ...

In Pakistan, the cotton mealybug, Phenacoccus solenopsis Tinsley (Sternorrhyncha (Homoptera): Pseudococcidae), is a serious pest of many cultivated plants. A parasitoid, Aenasius bambawalei Hayat (Hymenoptera: Encyrtidae), is associated with P. solenopsis. In order to mass rear A. bambawalei for a biological control program, it is important to investigate the parasitoid’s host stage preference ...

Scale insects (Hemiptera: Sternorrhyncha: Coccoidea) are a speciose and morphologically specialized group of plant-feeding bugs in which evolutionary relationships and thus higher classification are controversial. Sequences derived from nuclear small-subunit ribosomal DNA were used to generate a preliminary molecular phylogeny for the Coccoidea based on 39 species representing 14 putative famil...

Çalışmada, en önemli unlubit avcılarından biri olan Nephus includens Kirsch (Coleoptera: Coccinellidae)’in, bağların zararlılarından Planococcus ficus (Signoret) (Hemiptera: Pseudococcidae)’un farklı dönemleri üzerindeki tüketim kapasitesi ve dönem tercihi araştırılmıştır. Denemeler 25 ± 1 ºC sıcaklık, %60 10 nem 16:8 (aydınlık/karanlık) koşullarındaki iklim kabinlerinde yürütülmüştür. N. inclu...