Healthy Plants: Q&A from Mr Booster

How to get Canistel tree to produce
without dropping flowers and fruit

Q: My Canistel tree is 3 1/2 years old and is growing very well, see the picture below. It gets hundreds of pea sized "berries" but then they fall off. No canistel fruit. What's wrong?

A: You have such a nice looking tree, it is a shame you can't get any fruit to ripen.
In our experience, Pouteria trees dropping fruit prematurely is a very common problem. There may be one of the following reasons, or a combination of them:
- Cold winters may affect production, and while Canistel is generally pretty hardy tropical plant that can easily withstand short periods of chill, the fruit may never form properly if it had a cold winter.
- Lack of water. Canistel tree is pretty drought tolerant, but for the proper production cycle it needs regular irrigation. Especially during hot summer.
- The tree may be not strong enough; young trees drop fruit very often when they don't have enough "fruiting energy" built up in their system.
Your tree looks well established and vigorous, however, flower/fruit drop is often a sign of insufficient nutrients of particular kind, usually Boron (B) and/or Molybdenum (Mo): either when a tree is too young and not strong enough, or because of poor soils and lack of necessary elements.

Here is what can be done, considering you live in a warm, frost-free climate.

1. Provide regular fertilizing program. We recommend liquid fertilizers Sunshine Boosters that are safe to use with every watering and year around. It is beneficial to switch plants from traditional "slow-release" fertilizer to the liquid one because it makes a huge difference in plant growth and flower/fruit quality and quantity. See also:
- Why liquid fertilizers are better than dry
- Article about benefits of liquid fertilizers.

Q: I'm living in Maryland growing zone 7A and would like some info on when to fertilize my potted mango trees. I ordered your Sunshine Mango Tango 2-2-4. All your mango trees are in pots.

A: You can start using this fertilizer right away, any time of the year, and every time you water your plants.
Sunshine Mango Tango, as well as other Sunshine boosters, is an amino-acid based liquid fertilizer that is scientifically developed for daily plant needs in all necessary nutrients. This means, you may use this fertilizer with every watering, including winter period.
Traditional fertilizers (both granulated and soluble, EDTA-chelated) can only be used during hot months while plants grow actively, and must be limited or not used at all during cooler months, to avoid nutrient lock up in soil (which basically means "building up unused elements"). With Liquid Sunshine Boosters, it is safe to add them every time you water your tree.
During cooler weather and when plant metabolism slows down, a tree will consume less water (as well as food), and you will automatically reduce watering, to keep over-wintering plants on a dry side. This means, less fertilizer too. This allows you to control elements intake naturally, like you control water amount just as much as the plant needs.

Healthy Plants: Q&A from Mr Booster

How to keep bugs away naturally?

Q: I started moving my tropical plant collection indoors as it's getting colder... And all of a sudden, I noticed bugs on leaves! I know for sure all my plants were bug-free when I kept the pots outside in my lanai. What happened? And how can I keep them clean and healthy without using any harsh chemicals? I have many edibles and herbs that I use in my cooking and prefer to stay away from insecticides. Any suggestions?

A: It is very common when healthy looking plants, once moved indoors for the winter, get insect infestations. The main reason is change of environment that puts a plant into stress and makes it susceptible to parasites and diseases. Just think about what a plant is missing, a whole combination of necessary conditions that provided a good life:
- Bring light -> light level reduced, so beneficial UV spectrum is gone
- Air circulation -> less wind = more bugs thriving
- Warm temperature -> from upper 80's in summer to 70's in your AC room
- Air humidity -> although humid air is believed to be causing some issues (for example fungus), however, reducing humidity overall puts a plant into stress and makes it more vulnerable.

Many gardener prefer to avoid chemicals, especially when it comes to treating edible plants and indoor collections. The solution to your problems is - Organic Solution!

SUNSHINE NoBug - Natural Plant Protector.
Shampoo for Plants - for both indoors and garden

SUNSHINE NoBug - is a natural solution to keep your plants healthy and bug-free without harsh chemicals. It is great for organic gardening and edibles, eco-safe and non-toxic for humans and pets. It kills, repels and prevents: spider-mites, mealybugs, whiteflies, aphids and many more. No wait time required - spray and play! And it smells like jasmine, forget stinky insecticides!
How does it work? Just look at these ingredients: Kosher Glycerine, Organic Coconut Oil, Organic Palm Oil, Oat Protein, Organic Soap, Horticultural Oil, Jasmine Oil, Water. Yum! But bugs hate it - they suffocate in it! This is why your plants will have NO BUGS with NoBug, that's it!

Directions are simple:

- Mix 100 ml (3-4 oz) with 1 qt (32 oz) of water, or 500 ml (16 oz) in 1 gal of water - for larger applications
- Spray foliage to drip point, including underneath leaves.
- Repeat the treatment in 7 days.
- As a preventive care, spray leaves once a month to keep insects away.
- You may use a paper towel saturated with this solution to wipe the leaves and remove residue from insects.
- Store at room temperature.

This poor Pepper plant was tossed into garbage can by a neighbor... it looked hopeless, infested with mealybugs. We saved it with NoBug ! In 2 days it perked up, and after 4 weeks its healthy and fruiting!

Spring tips

Once temperatures stay above 65F, growing season starts for tropical plants.

1. Increase watering as soon as you see new buds opening and new leaves growing

2. Trim all dead or damaged wood 1-2 inches above new growth

3. Apply the following treats to make your plants happy:

- granulated balanced fertilizer

- SUNSHINE Superfood microelements as foliar spray for healthy growth, profuse flowering, and disease/bug resistance

- SUNSHINE-E to help plants come out of dormancy faster and increase metabolism. 100 ml bottles and 50 ml bottles available for large plant collections.

- SUNSHINE-Honey to fruit trees so you can enjoy sweeter and bigger fruit later this year

4. If nights are still chilly, take potted plants outside to enjoy the afternoon sun and bring them back indoors for the night.