Hi!
I've recently bought an sour-orange, chinotto, citrus myrtifolia.
I've bought it last week, and it has 6 oranges on it, which i can already harvest, as they are ready to eat.
Thanks.
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Hand pollinating is easy but you should try to touch each flower.
I usually use a small artist paint brush (children's water color paints have a small brush) or any small (very soft) brush (even a make-up brush will work). These work better than anything else as you only need to lightly touch the pollen and then touch the next flower.
Here is a link to some useful information.
www.gardeningknowhow.com/
onegreenworld.com/
The reason for the lack of pollen is the growing conditions of the plant. Temperature has a strong effect on development of flower and ovary development, pollen germination. For the period of budding and flowering of orange trees, the optimum temperature of air and soil is 20°C (293,15K). Flowers that have blossomed at an average temperature above 25°C (298,15K) are, as a rule, small, with an underdeveloped pistil or its absence, with deformed filaments, with sterile pollen, etc. Check the temperature in the room where your tree is.
Orange trees don't need another variety to pollinate them, but they will not make fruits without pollination. Pollination is done by insects, especially bees. Your trees may bloom away, and you will even see a tiny fruit develop, but without pollination, these fruits will soon fall off. Hand pollination will resolve this problem and will make sure you get a big crop. Hand pollinating oranges isnt difficult. You need small and soft thing, such as paint brush, or cotton swab, or a birds feather. The goal is to transfer the pollen from one flower (powdery grain on the ends of stamen) to the pistil on another flower (the single stalk in the middle of the ring of stamens). Repeat this process for all the flowers on your tree. Make it once a week until all the flowers are gone.
I found this information from another Thrityfun reader: www.thriftyfun.com/
You can hand pollinate. You can take a q-tip and take the pollen out of a flower and put it in another flower.
You can also plant heavy pollinating flowers in the same area. That draws the bees and other pollinating insects and humming birds to pollinate .
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