Developmental Anatomy of Lesions on `Sunburst' Mandarin Leaves Initiated by Citrus Rust Mite Feeding

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

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...

Egg Production of the Citrus Red Mite (Acari: Tetranychidae) on Lemon and Mandarin Orange

Environ.Enlomol.17(4): 715-721 (1988) ABSTRACT The suitability of lemon, Citrus limon (L.) Burm. cv. Lisbon, for egg production by the citrus red mite, Panonychus citri (McGregor), was compared with that of mandarin orange, Citrus unshiu Markovitch cv. Satsuma in the field and laboratory over a 15-moperiod. The two plant specieswere most suitable during the spring (April-June), when mites gener...

Optimization and Kinetic Studies of Ultrasound-Assisted Extraction on Polyphenols from Satsuma Mandarin (Citrus Unshiu Marc.) Leaves

The present article includes the Ultrasound-Assisted Extraction (UAE) of Citrus unsiu Marc. leaves rich in polyphenols. The best possible combinations of solvent, pH of the media, solvent/solid ratio, extraction time, extraction temperature and particle size were obtained for the maximum extraction of Total Phenolic Compounds (TPC) and Total Flavonoid Compounds (TFC) by us...