The numbers of injurious species of insects recorded on recently introduced sub-tropical fruit trees in Israel are: avocado 26, guava 20, annona 18, loquat 16, persimmon 15, mango 14, pecan 9, pitanga 9. Severe attacks of the greenhouse thrips, Heliothrips haemorrhoidalis, commonly occurring on ...

The numbers of injurious species of insects recorded on recently introduced sub-tropical fruit trees in Israel are: avocado 26, guava 20, annona 18, loquat 16, persimmon 15, mango 14, pecan 9, pitanga 9. Severe attacks of the greenhouse thrips, Heliothrips haemorrhoidalis, commonly occurring on ...

The scarabaeid Maladera matrida is a serious pest of agricultural crops in Israel and causes damage to a variety of fruit trees, including apple, pear, peach, loquat, guava, persimmon, cherimoya [Annona cherimola], papaya [pawpaw], grapefruit, lemon, pomegranate and litchi [Litchi chinensis]. A...

Several satellite DNA probes were hybridized to restriction enzyme-digested genomic DNA of cultivars of avocado, Carica papaya and mango. Specific DNA patterns were obtained allowing identification of cultivars. A.J. Jeffreys' probe 33.15 was best for papaya and 33.6 for mango, while 22.3 was best...

Under field conditions, R. necatrix was found to infect and kill deciduous fruit trees, olive, the rootstocks Citrus [Poncirus] trifoliata, C. macrophylla, C. aurantium and Troyer citrange, various grapevine rootstocks, avocado, mango, macadamia, pomegranate and loquat. Certain weeds and field...

In Israel, the scarabaeid Potosia angustata [Protaetia angustata] has been recorded damaging lychee [Litchi chinensis] fruits (var. Mauritius mainly), ripe pear fruits (var. Spadona and Coscia) and graftings of avocado. The larvae of P. angustata were found in the axils of date palm leaves.

In 3 years of laboratory and field studies, the chitin inhibitors Alsystin WP [triflumuron], Dimilin WP [diflubenzuron] and Nomolt SC [teflubenzuron] prevented development of Carpophilus larvae in date fruits of cultivars Hadrawi, Deklet-Nur and Majhul. Damage caused by the beetles in untreated...

Observations were made on avocado cv. Fuerte [Persea americana] in Upper Galilee, Israel, in 1981. Pollen loads from foraging honeybees were collected from traps fitted to 10 hives in 2 plantations and the pollen grains were compared with those from the ripe stigmas of avocado flowers. More than...

A number of factors affecting rooting success were studied with Valencia and Newhall navel oranges, Mineola tangelo and Pomelit grapefruit. The rootstocks studied included Carizzo citrange, Swingle citrumelo, Rangpur lime [Citrus limonia] and Trangpur (Troyer citrange × Rangpur). The species,...

A low-cost, mini-lysimeter system was assembled by connecting 2 electronic weighing scales to a data recorder. Each lysimeter had a surface area of 0.15 m² and rested on a sensitive electronic load cell capable of measuring up to 30 kg with a precision of 25 g. The electronic signals were monitored ...