garden lecture

8/6/2019 Garden Lecture

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Organic Gardening/ Workshop and

Lecture


2/23

Nitrogen

Phosphorus

Potassium


3/23

The worst error youcan make is giveyour plants toomuch

A number of pestswill increase theirpopulation asnitrogen level

increasesBest way to feedyour plants nitrogenis with compost,

worms, and

decaying insects


4/23


5/23

Most common symptoms ofdeficiency include;

Yellowing, bronzing, reddening

and death of older leaves. Kelp meal (quick release, good

for fruit/flower)GreensandWood ashes (caution: too muchcan raise the pH level too high)

Sulfate of potash (0-0-52)

Plants must have potassium to make

carbohydrates and protein. If your organic

garden lacks potassium, your fruits and

flowers will be puny and plant growth will

be stunted.


6/23

Symptoms;

Yellow stripes on leaves,

turning red

Epsom salt (for alkalinesoils)

Limestone (for acid

soils)

LowMagnesium Plants

cannot absorb the N, P, K


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8/23

Soil needs to be kept moist all the timeOver watering/ under watering will

create a very active insect problem

When watering, water the roots only


9/23


10/23


11/23

Aphids is #1 insect problem

Beetles

Cut worms

Nematodes

Slugs

Hornworm


12/23

Use Herbs to chase away insects, plant

with or in between vegetable rows

Best ones to plant;The Onion Family Garlic, chives, leeks,

shallots,


13/23

Garlic,Cayenne pepper

Diatomaceous Earth

Neem

Soap and water

Horticultural Oils

Last to use; Pyrethrum spray - It

should be noted that though thepesticide is organic, it can still

be harmful to humans.


14/23

Lady Bugs

Praying Mantis

Beneficial Nematodes


15/23


16/23

Never too late to useplastic or woven

weed barriersNewspapers less

expenseWood mulchs,

leaves, cut grass,straw

Back breaking Hoe,great for greenmanure to conditionsoil


17/23

Ground gardens: should

never remove all weeds

from the garden

Weeds are used by

Beneficial insects as a

home Its OK, to put the weeds

in the compost bin

Sprays Do not use


18/23

Most Common

White Powdery disease / Early Blight /

Late BlightRoot Rot

Calcium Deposits


19/23

Active warm to cool, back to warm weather

Or rain with warm days, cool nights

Corrections MILK - a weekly spray of milk at

a concentration of at least 10% (1 part milk to

9 parts water) significantly reduced the

severity of powdery mildew infection on the


20/23

Spores form on infested plant debris at the soil surface or on active

lesions over a fairly wide temperature range, especially under

alternating wet and dry conditions.They are easily carried by aircurrents, windblown soil, splashing rain and irrigation water. Infection of

susceptible leaf or stem tissues occurs in warm, humid weather with

heavy dews or rain.

Necessary to apply fungicide sprays to fully protect

plants from early blight.


21/23

Avoid sources of inoculums: The most

effective management strategy for late

blight is to avoid sources of early season

inoculums (spores). Late blight can only

survive on living tissue, so potato tubersor tomatoes (transplants or imported fruit)

are the only source of early season

inoculums.

If the growing season is wet, and late blight is

present,Continuous fungicide coverage isnecessary to protect plants from infection.

(C

oppercide)


22/23

Tomatoes and many other vegetables

develop fairly extensive and deep roots.

Without proper soil preparation, vegetable

crops are unable to develop adequate roots

and calcium and water uptake is inhibited.


23/23

Clean your hands, use garden gloves

Clean your Garden tools

Check your garden on a regular basisand use preventative solutions

Before using any pesticides make sure you

read the label

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