An expanded host list is given for AmhI.ypeltu rriiiclcr (frui tspotting bug) and Aiiib/.lp,/t(i 1ritcd.vtptt.v Iutrsccris (banana-spotting bug) in Australia. These are compared with thosc cxtracted froti1 the literature for Airiblj*pdtii imwpliuga China, Ainhlypdtrr tiirohromc~e Brown. . 4 t d~I~p e~l t t i 1rrtp.sc.clr.s pc/piwrsis Brown, and Amblypel[u hrcw?ornis Brown. Despite niany new additions to the list 01' known hosts for A . niti&i and A . 1. lutescerzs, Australian native plant species are relatively poorly represented.Rainforest species are thought to be important refugia and breeding hosts for the bugs since orchards located adjacent to such vegetation are often severely damaged. The broad host r u n g of severnl Artih/jywlftr spp. is discussed with respect to the bugs' pest status and the role of alternativc hosts a s breeding sites for fruitspotting bugs which migrate into commercial orchards. commercial orchards, damage, fruit, natural habitat, nuts.
Key wordsThis seems to have occurred because of recent increases in both the variety of fruit and nut species cultivated and the area planted to them. There is also an increased iiwareness by growers that the bugs causc' significant d~l u g e to
The fruitspotting bug Amblypelta nitida Stål., was responsible for more than 93.5% of green fruit drop in lychees in 1985/1987 at Maroochy Horticultural Research Station, Nambour (lat. 27 °S). A. nitida at other locations in southeast Queensland and A. lutescens lutescens (Distant) in north Queensland (lat. 17 °S), caused green fruit drop ranging from 24.8% to 98.5%. These results suggest that fruitspotting bugs may be the most important factor inducing lychee fruit abscission in some areas.
This chapter on longan and litchi (Litchi chinensis) covers the following: effects of soil type, soil pH, salinity and mycorrhizas on fertilizer requirement; factors affecting leaf composition; leaf and soil analyses, and orchard surveys for fertilizer requirement determination; N, P, K, Ca, Mg, Zn, Fe, Cu, B and Mn nutrition (concentration and uptake, effects on productivity, and deficiency symptoms); fertilizer programme for young orchards in Australia; and fertigation.
This chapter briefly covers the taxonomy, biological development (including flowering and fruiting), and morphology of litchi (Litchi chinensis) and longan.
This chapter discusses the following aspects of fruit development and maturation in litchi (Litchi chinensis): embryology, histology and organogenesis; types of fruit; fruit growth stages; fruit abscission; role of growth regulators (auxins, gibberellins, cytokinins, abscisic acid and ethylene) in fruit development; and changes in sugars, acids, nutrient uptake and colour during fruit maturation.
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