Seasonal Population Fluctuation of the Pink Citrus Rust Mite, <I>Aculops pelekassi</I> (KEIFER) on Citrus Fruit.

Hall et al.: Citrus Rust Mite & the Negative Binomial 1 CITRUS RUST MITE (ACARI: ERIOPHYIDAE) COUNTS ON FRUIT AND THE NEGATIVE BINOMIAL DISTRIBUTION

Count data for the number of citrus rust mites per cm 2 on fruit across a 4-ha (10acre) area of orange trees followed the negative binomial probability distribution 79% of the time based on chi-square tests. A correlation of r = 0.993 was found between observed counts and counts projected based on the distribution. A common k of 0.149 was computed but generally appeared more suitable for mean d...

Effects of reducing sample size on density estimates of citrus rust mite (Acari: Eriophyidae) on citrus fruit: simulated sampling.

The consequence of reducing sample size on the accuracy and precision of estimates of citrus rust mite, Phyllocoptruta oleivora (Ashmead), densities on oranges was investigated. The sample unit was a 1-cm2 surface area on fruit. Sampling plans consisting of 360, 300, 200, 160, 80, 48, 36, or 20 samples per 4 ha were evaluated through computer simulations by using real count data from 32 data se...

Two Species of Cecidomyiidae Predacious on Citrus Rust Mite, Phyllocoptruta Oleivora, on Florida Citrus

the effect of spirodiclofen sc 240 on citrus rust mite (phyllocoptruta oleivora (ashmead))

the effects of three doses of spirodiclofen sc 240 in comparison with three registered ‎acaricides on citrus rust mite in western part of mazandaran province during period of 2003-‎‎2004 studied. the bcr design was used to assign four replications of seven treatments ‎‎(spirodiclofen sc 240 at doses 0.1, 0.18 and 0.27 millilitre in 1000cc water, fenproximate, ‎pyridaben, abamectin) including an...

Allelic diversity of phytoene synthase gene influences the transcription level in citrus fruit among a citrus F1 hybrid population

Phytoene synthase (PSY) is one of the key regulatory enzyme on the biosynthesis and accumulation of carotenoid in citrus fruits. The transcriptional diversity of PSY is mainly attributed to the structural variation in promoter region among PSY alleles. In aim to clarify how this transcriptional diversity is regulated among them, PSY alleles responsible for carotenoid biosynthesis in the fruits ...