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This article is a list of diseases of cotton (Gossypium spp.). Bacterial. Bacterial diseases; Bacterial blight of cotton: Xanthomonas citri subsp. malvacearum:
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Approximately 4,600 hectare of this species have been destroyed in Sri Lanka since this first epidemic in 1987. [13] Therefore, this pathogen reduces the yield of natural rubber latex in Asian and African countries especially and is thus a major threat to millions of rubber farmers.
Dysdercus cingulatus is a species of true bug in the family Pyrrhocoridae, commonly known as the red cotton stainer. [1] It is a serious pest of cotton crops, the adults and older nymphs feeding on the emerging bolls and the cotton seeds as they mature, transmitting cotton-staining fungi as they do so.
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Sri Lanka is a tropical island situated close to the southern tip of India. The invertebrate fauna is as large as it is common to other regions of the world. There are about 2 million species of arthropods found in the world, and still it is counting. So many new species are discover up to this time also.
Location of Sri Lanka. Sri Lanka is a tropical island situated close to the southern tip of India. It is situated in the middle of Indian Ocean. Lichens are a mutual relationship between algae or cyanobacteria with a fungus. Therefore it is a composite organism and not plants. Lichens can be found in different shapes and forms.
Sri Lanka is known to be home for 794 species of hemipterans included to 71 families. Detailed work of Sri Lankan hemipterans are recorded in book Catalogue of Hemiptera of Sri Lanka. [3] Sri Lanka comprises 74 species in 46 genera and 6 families of aphids within order Hemiptera. Two endemic aphid species found on Sri Lanka.