Алое - сорта, виды

да уж, когда это не соцветие, а лист, выглядит это не так эстетично, как хотелось бы:

[IMG]http://www.smgrowers.com/image/aloemite.jpg[/IMG]

фото отсюда:
http://www.smgrowers.com/info/aloemite.asp

а вот детальная статья, правда, на английском:
By: Michael J. Green
Well, at least one does, sort of. The dreaded Aloe mite, aka Aloe gall mite, Aloe wart mite and
Aloe cancer mite, doesn’t exactly “kill” the Aloe, but it does destroy the aesthetics. The technical
name is either Aceria aloinis or Eriophyes aloinis, two names for the same villain. In addition to
aloes, Eriophyes aloinis is reported to infest Haworthia species. Googling each name will return
different sets of information. About 45,000 species of mites have been described, but this
amounts to only about 5% of the number of species estimated to be alive today.
Mites have successfully colonized nearly every known marine, terrestrial, and fresh water habitat
including polar and alpine extremes, tropical lowlands and desert barrens, surface and mineral
soils to depths of 10 meters, cold and thermal surface springs and subterranean waters with
temperatures as high as 50C, all types of streams, ponds and lakes, and sea waters of continental
shelves, deep sea trenches to depths of 5000 meters AND some Aloes. They’re everywhere.
Mammals, including us, and birds, are hosts to innumerable species of parasitic mites (e.g.
scabies and mange mites), as are many reptiles and some amphibians. Many mites have complex
symbiotic relationships with the larger organisms on which they live. Some, like our “Aloe
mite”, are more parasitic. Mites found on agricultural crops are major economic pests (e.g. spider
mites) or useful bio-control agents (e.g. phytoseiid mites) of those pests.
There are three major groups of mites that attack cacti and succulent ornamental plants. These are
the spider mites, the false spider or flat mites, and the gall or eriophyid mites. Aloe mites are
classified as eriophyid mites. Specie specific information is difficult to find; thus much of the
information presented is derived from eriophyid mites in general. The eriophyids are a group of
plant-feeding mites that inject a plant growth regulator similar to the weed-killer 2,4-D (2,4-
Dichlorophenoxyacetic Acid) into the plant cells as they feed. This induces formation of a gall,
which surrounds the mite as it feeds. Eggs are laid within the gall; nymphs mature within the gall
and the emerging adults infest new foliage. Galls themselves are abnormal plant growths.
Since they are mostly host specific, eriophyids can be identified by the plant and damage seen.
Various other organisms such as insects, nematodes, fungi, bacteria, and viruses can also cause
galls, though not necessarily on aloes. After the induced change has altered the behavior of the
affected cell or cells, the mite does not have to remain on the site (i.e. in the gall) to insure
continuation of gall growth. Stems, leaves and flowers may be affected. These tiny mites
typically over winter on their host plant. They begin feeding and initiate gall formation in spring
as the leaf or flower buds open. Eriophyid mites usually do not cause serious “injury”. Large
populations can be tolerated by plants, but the damage may / will be unsightly. The damage to
the aloe plant is irreversible. There is an Aloe bainsii compact form at the JMCC that has its galls
cut out almost annually and the Aloe still looks healthy.
Since eriophyids are among the smallest of mites (less than 1/100 of an inch in length), field
identification of species on the basis of their morphology usually is difficult or impossible.
Eriophyid mites are more closely related to spiders and ticks than to insects. Unlike spider mites,
which have 8 legs (as do spiders), and insects, which have 6 legs, eriophyids have only four legs.
They are located near the head so that the elongate posterior portion of the body must be dragged
along the plant surface. They are long, ringed (annulate), and worm-like. Eriophyids are also the
only important mite transmitters of plant viruses.
They are poor crawlers, but their small size facilitates travel between hosts by wind, water,
insects, birds, and people. Eriophyid mites reproduce rapidly. Fertilization occurs when females
come in contact with sperm sacs left on the host by males. Females can lay as many as 80 eggs in one month under favorable conditions. The majority of eriophyid mite species go through four
stages of development - the egg, two nymphal instars and the adult. The length of life cycle is
variable depending on the species, but it is usually approximately seven days to reach adulthood.
Adults live for about one month, and there are as many as six to eight generations per year where
seasons are long.
It is fairly easy to control (but not destroy) eriophyid mites. Infected areas can be cut out to
eliminate adult mites and remove unattractive tissues. Burn, or (plastic) bag and dispose, of
infested plant tissues in the trash. Removing and destroying galls is often necessary to stop the
spread of mites on the current host plant and neighboring plants. Exposed mites are easily
controlled, but most pesticides do not kill the mites living within galls.

Heavy infestations can be “controlled” with insecticides. Spraying, or root drenching plants, will
not get rid of the galls (deformity) once they have been produced, but BOTH are necessary for
efficient control. Root drenching alone is effective, but takes longer. Apply insecticides in early
spring, and again just after bud break for later blooming species. Dormant oil, carbaryl, dicofol
(commercial only, in California), horticultural oils, and insecticidal soaps may be effective.
Carbaryl (Sevin) is highly toxic to bees and should not be applied when they are active (i.e. when
the aloe is in bloom). Orthene, used according to the directions, has been successful for some
hobbyists but the formulation does not contain miticides. Based on experimentation, dimethoate
is used by at least one aloe specialist, and does contain a miticide. Applying any chemicals to
control aloe mites may also kill beneficial insects.

Георгий, поделитесь схемой лечения, штука редкая в наших коллекциях, но надо же знать, как лечить, если что....я лично с donnie морочиться не стала, просто отправила в помойку вместе с горшком и обработала всю коллекцию превентивно, под рукой был только фуфанон, им и обработала все поголовье...а вы чем лечили и по какой схеме?

Я лечил препаратами Омайт, Массай, Санмайт, разводил 1мл/1л, плюс добавлял биоприлипатель - Сильвет Голд или Липосам.

После трех обработок с кратностью 5 дней прекратилось образование новых галл на листьях, а старые образования начали подсыхать.
Детки появлялись без симптомов болезни.
Новые листья тоже здоровые, за лето растения оправились.

Позже могу показать фото.

На цветоносах порой образуются детки, которые потом можно укоренить, Вы рановато срезали...

чем вызван некроз - сказать сложно, если солнечный ожог исключен, то это может быть и залив, и слишком жесткая вода, и инфекция, но вероятнее всего, если учесть, что листья соприкасались со стеклом - это критический перегрев тканей в условиях отсутствия вентиляции воздуха.

обрезать макушку (то бишь, делать из алое стеблевой черенок) при условии нормальной корневой системы я бы не стала - наверно, лучше оборвать все листья до нужной высоты, подсушить и потом посадить алое, заглубив его....а потом уже, когда образуются корни на нужной высоте стебля, обрезать тот участок стебля, что ниже, опять просушить, обработать фунгицидом и посадить....

Подскажите пожалуйста, есть ли шанс у розетки а.Рауха Snowflake процвести и не погибнуть? На фото алоечка размашистей. На самом деле ок. 10 см по самым длинным листьям. Надо ли удалить цветонос (а так не хочется...)? У основания растения есть зачатки новых розеток, но они крошечные.

Ура! Мне приходилось слышать, что розетки некоторых видов алое отмирают после цветения. Хотя гастерии у меня цветут и не думают отмирать

Часть моей коллекции сортовых Алоэ:

[IMG]http://s55.radikal.ru/i147/1209/6e/04e9dfdea883.jpg[/IMG]

Цветут и плодоносят

Ну и немного портретов:

Aloe cv. Carmine

[IMG]http://s41.radikal.ru/i092/1209/ad/97917cfa921d.jpg[/IMG]

Aloe cv. Franco

[IMG]http://s017.radikal.ru/i425/1209/23/c96adf6b87ac.jpg[/IMG]

Aloe cv. Pink Blush

[IMG]http://s008.radikal.ru/i303/1209/ae/92313961b4bc.jpg[/IMG]

Ваша коллекция - просто невероятная красотищща! Такие крапинки и каемочки - дух захватывает... И все алойки такие уверенные в себе:)
Розовый крап и каемки - это ведь сортовой признак? Например, у Aloe cv. Franco и RFG? И они сильно вырастают?

А скажите, ведь А. Рауха вряд ли опылится своей пыльцой или другим Сноуфлэйком-клоном? Чтоб получить семена, вероятно надо искать другой цветущий алой...

Георгий, какая зайка эта белоснежка а от "сахара" чем отличается, листовая пластина короче и шире?